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Question
In the following, check whether or not the given ratios form a proportion:
25 : 40 and 20 : 32
Solution
25 : 40 and 20 : 32
Since 25 : 40 = `25/40=5/8`
and 20 : 32 = `20/32=5/8`
∴ Ratio 25 : 40 and 20 : 32 are equal, so they form a proportion.
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