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Date:___________________

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Grade 6 - Mathematics
7.2 Find if the Given Numbers are in Proportion

If four numbers are in proportion then
The product of extremes = The product of means

That is, if a:b = c:d, then axd = bxc.

Example: 2:5 = 10:25 -- Is this proportion correct?
Product of extremes = 2 x 25 = 50.
Product of means = 5 x 10 = 50.
Since, Product of extremes = Products of means, the numbers 2:5 = 10:25 are in proportion.


Directions: Find if the given numbers are in proportion. Also write at least ten examples of your own.

Name: ___________________

Date:___________________

Grade 6 - Mathematics
7.2 Find if the Given Numbers are in Proportion

Q 1: 7:9 = 35:45 -- are they in proportion?
No
Yes

Q 2: 10:25 = 50:125 -- are they in proportion?
No
Yes

Q 3: 11:25 = 55:125 -- are they in proportion?
Yes
No

Q 4: 25:30 = 125:150 -- are they in proportion?
Yes
No

Q 5: 15:20 = 225:300 -- are they in proportion?
No
Yes

Q 6: 7:5 = 49:30 -- are they in proportion?
Yes
No

Q 7: 21:25 = 441:625 -- are they in proportion?
No
Yes

Q 8: 9:15 = 81:225 -- are they in proportion?
No
Yes

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Question 10: This question is available to subscribers only!


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