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Finding the Fourth Proportional to 17,645.80, 24,352.08 and 9,687.96

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Solution

The fourth proportional to 17,645.80, 24,352.08 and 9,687.96 is: 13,369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,645.80 : 24,352.08 = 9,687.96 : x
  2. Step 2: Convert to fraction form
    17,645.80/24,352.08 = 9,687.96/x
  3. Step 3: Cross multiply
    17,645.80x = 24,352.08 × 9,687.96
  4. Step 4: Simplify right side
    17,645.80x = 235,921,976.96
  5. Step 5: Solve for x
    x = 235,921,976.96/17,645.80
  6. Step 6: Final answer
    x = 13,369.87

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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.