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Question
Find the mean proportion of the following :
`28/3` and `175/27`
Solution
Let x be the mean proportion
`28/3 : "x" : : "x" : 175/27 `
`=> "x" xx "x" = 28/3 xx 175/27`
`=> "x"^2 = 4900/81`
`=> "x" = sqrt(4900/81)`
`=> "x" = 70/9`
The mean proportion is `70/9`
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