Which pair of ratios form a proportion? A. 3 : 4 and 4 : 5 B. 10 : 12 and 16 : 18 C. 7 : 10 and 10 : 14 D. 5 : 8 and 20 : 32

asked Feb 8, 2016 186k views

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Which pair of ratios form a proportion?

A.
3 : 4 and 4 : 5

B.
10 : 12 and 16 : 18

C.
7 : 10 and 10 : 14

D.
5 : 8 and 20 : 32

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3 votes

D. if you rake the beginning ratio 5:8 and multiply the ratio by 4 you get 20:32. i believe this is the proper way to solve.

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5 votes

It would be D.5:8 and 20:32
Because 5 is to 20 [4x's] and 8 is to 32 [4x's]

Emil Condrea answered Feb 14, 2016

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