Resposta:
[tex]\textsf{Leia abaixo}[/tex]
Explicação passo a passo:
[tex]\textsf{a, b, c, x}[/tex]
[tex]\mathsf{\dfrac{a}{b} = \dfrac{c}{x}}[/tex]
[tex]\mathsf{\dfrac{5}{8} = \dfrac{15}{x}}[/tex]
[tex]\mathsf{5x = 120}[/tex]
[tex]\mathsf{x = \dfrac{120}{5}}[/tex]
[tex]\boxed{\boxed{\mathsf{x = 24}}}[/tex]
