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Finding the Fourth Proportional to 39,711.12, 54,801.24 and 22,483.20

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Solution

The fourth proportional to 39,711.12, 54,801.24 and 22,483.20 is: 31,026.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,711.12 : 54,801.24 = 22,483.20 : x
  2. Step 2: Convert to fraction form
    39,711.12/54,801.24 = 22,483.20/x
  3. Step 3: Cross multiply
    39,711.12x = 54,801.24 × 22,483.20
  4. Step 4: Simplify right side
    39,711.12x = 1,232,107,239.17
  5. Step 5: Solve for x
    x = 1,232,107,239.17/39,711.12
  6. Step 6: Final answer
    x = 31,026.76

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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.