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The geometric mean is the square root of the product of two numbers. In this case, sqrt(24*30) = sqrt(720) =~ 26.8

A method for number lovers: 24=8x3=23x31.

30=6x5=21x31x51.

720 = 23+1x31+1x51 = 24x32x5

sqrt(720) = sqrt(24)xsqrt(32)xsqrt(5) = 22x31xsqrt5 = 12sqrt5 (=~12x2.236 =~ 26.8)

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Q: What is the geometric mean of 24 and 30?
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