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Finding the Fourth Proportional to 22,909.64, 31,572.52 and 17,865.90

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Solution

The fourth proportional to 22,909.64, 31,572.52 and 17,865.90 is: 24,621.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,909.64 : 31,572.52 = 17,865.90 : x
  2. Step 2: Convert to fraction form
    22,909.64/31,572.52 = 17,865.90/x
  3. Step 3: Cross multiply
    22,909.64x = 31,572.52 × 17,865.90
  4. Step 4: Simplify right side
    22,909.64x = 564,071,440.40
  5. Step 5: Solve for x
    x = 564,071,440.40/22,909.64
  6. Step 6: Final answer
    x = 24,621.58

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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.