Respuesta :

Answer:

x = 8

Step-by-step explanation:

Ratios can be expressed in fractions as well

x:4 = ˣ⁄₄

so we can solve this using fractions

x:4 = 16:x

ˣ⁄₄ = ¹⁶⁄ₓ

x² = 64

x = 8

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