Answer:
900
Step-by-step explanation:
You are given the proportion
[tex]x:81=27:2.43[/tex]
Rewrite it in fraction form:
[tex]\dfrac{x}{81}=\dfrac{27}{2.43}[/tex]
Cross multiply:
[tex]2.43\cdot x=81\cdot 27[/tex]
Divide by 2.43:
[tex]x=\dfrac{81\cdot 27}{2.43}\\ \\x=\dfrac{81\cdot 27}{9\cdot 0.27}\\ \\x=\dfrac{9\cdot 27}{0.27}\\ \\x=\dfrac{9\cdot 2,700}{27}\\ \\x=\dfrac{9\cdot 100}{1}\\ \\x=900[/tex]
