En resumen

<img src="https://tex.z-dn.net/?f=%20%20%5Cfrac%7B23%7D%7B40%7D%20%3D%20%20%5Cfrac%7B161%7D%7Bx%7D%20" /> <img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B161.40%7D%7B23%7D%20" /> <img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B6640%7D%7B23%7D%20" /> x = 280.

Mejor respuesta

MarianaBeltram
2

<img src="https://tex.z-dn.net/?f=%20%20%5Cfrac%7B23%7D%7B40%7D%20%3D%20%20%5Cfrac%7B161%7D%7Bx%7D%20" />

<img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B161.40%7D%7B23%7D%20" />

<img src="https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B6640%7D%7B23%7D%20" />

x = 280.