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Question
Find the mean proportion of the following :
ab3 and a3b
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Solution
Let x be the mean proportion
ab3 : x : : x : a3b
⇒ x × x = ab3 x a3b
⇒ x2 = a4b4
⇒ x = `sqrt ("a"^4"b"^4)`
⇒ x = a2b2
The mean proportion is a2b2
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