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Finding the Fourth Proportional to 16,191.73, 22,344.44 and 9,021.57

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Solution

The fourth proportional to 16,191.73, 22,344.44 and 9,021.57 is: 12,449.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,191.73 : 22,344.44 = 9,021.57 : x
  2. Step 2: Convert to fraction form
    16,191.73/22,344.44 = 9,021.57/x
  3. Step 3: Cross multiply
    16,191.73x = 22,344.44 × 9,021.57
  4. Step 4: Simplify right side
    16,191.73x = 201,581,929.57
  5. Step 5: Solve for x
    x = 201,581,929.57/16,191.73
  6. Step 6: Final answer
    x = 12,449.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.