Find the mean proportional between (a) 36 and 49, (b) 3,27
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Answer: a) The mean proportion of 36 and 49. The square root of 1764 = 42. So, 42 is the mean proportion of 36 and 49.
b) The mean proportional of 3 and 27 = +√3×27 = +√81 = 9.
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