2:5=x:25
You asked:
Solve \(2 : 5=x : 25\) for the variable \(x\).
MathBot Answer:
$$\begin{aligned}x &= 10\end{aligned}$$
Express both ratios as fractions. \[\frac{2}{5} = \frac{x}{25}\]
Cross-multiply and solve for the unknown. $$\begin{aligned}\frac{2}{5} &= \frac{x}{25} \\ 50 &= 5 x \\ x &&= 10 \end{aligned}$$