encuentra el valor del número x para que se forma una proporción
18 : 8 = x : 4
18 : 8 = x : 4
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Respuesta:
[tex]18 \div 8 = x \div 4 \\ 4 (18) = 8 (x) \\ 72 = 8x \\ \frac{72}{8} = x \\ 9 = x[/tex]
x = 9