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Question

Find which of the following are in proportion?
(i) 33, 44, 66, 88
(ii) 46, 69, 69, 46

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Solution

(i) Given 33, 44, 66, 88
Product of extremes=33×88=2904
Product of means=44×66=2904
Therefore product of extremes = product of means
Hence, given numbers are in proportion.
(ii) Given 46, 69, 69, 46
Product of extremes=46×46=2116
Product of means=69×69=4761
Therefore product of extremes is not equal to product of means
Hence, given numbers are not in proportion.

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