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Type the missing number to complete the proportion.\newline99 stamps on 11 sheet = 1818 stamps on ____\_\_\_\_ sheets

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Full solution

Q. Type the missing number to complete the proportion.\newline99 stamps on 11 sheet = 1818 stamps on ____\_\_\_\_ sheets
  1. Identify Proportion: Identify the proportion given and what is asked. 99 stamps are equivalent to 11 sheet, so we need to find how many sheets are equivalent to 1818 stamps.
  2. Set Up Proportion: Set up the proportion to find the missing number.\newlineUsing the proportion 9 stamps1 sheet=18 stampsx sheets\frac{9 \text{ stamps}}{1 \text{ sheet}} = \frac{18 \text{ stamps}}{x \text{ sheets}}, where xx is the number of sheets needed.
  3. Solve for x: Solve for x.\newlineCross-multiply to find x: 9×x=18×19 \times x = 18 \times 1,\newline9x=189x = 18.
  4. Divide to Isolate x: Divide both sides by 99 to isolate xx. \newlinex=189,x = \frac{18}{9},\newlinex=2.x = 2.

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