if the ratio 25 : 4x = x : 4, what is x?

if the ratio 25 : 4x = x : 4, what is x?
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1 Answer

?????????????? maebe yu meen (25/4x) = (x/4) ??????????????????

become (25x/4x)  = x^2/4

or x^2/4=25/4

become x^2=25

x=+-5
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