Which pair of ratios form a proportion?
need asap
5 : 10 and 10 : 15

8 : 12 and 18 : 27

9 : 15 and 24 : 30

6 : 20 and 7 : 30

For being in proportion,
Product of means = Product of extremes

Here,
only pair pair fulfills that

8 : 12 :: 18 : 27

8 × 27 = 12 × 18
216 = 216

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