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Finding the Fourth Proportional to 22,909.57, 34,368.09 and 8,115.28

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Solution

The fourth proportional to 22,909.57, 34,368.09 and 8,115.28 is: 12,174.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,909.57 : 34,368.09 = 8,115.28 : x
  2. Step 2: Convert to fraction form
    22,909.57/34,368.09 = 8,115.28/x
  3. Step 3: Cross multiply
    22,909.57x = 34,368.09 × 8,115.28
  4. Step 4: Simplify right side
    22,909.57x = 278,906,673.42
  5. Step 5: Solve for x
    x = 278,906,673.42/22,909.57
  6. Step 6: Final answer
    x = 12,174.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.