— Proporciones
a) \dfrac{a}{5} = \dfrac{20\,000}{25\,000} \Rightarrow a = 5 \cdot \dfrac{20\,000}{25\,000} = 5 \cdot 0{,}8 = 4.
b) \dfrac{m}{6} = \dfrac{9\,000}{18\,000} = \dfrac{1}{2} \Rightarrow m = 3.
c) \dfrac{p}{4} = \dfrac{32\,000}{16\,000} = 2 \Rightarrow p = 8.
d) \dfrac{x}{8} = \dfrac{36\,000}{48\,000} = \dfrac{3}{4} \Rightarrow x = 6.













