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Finding the Fourth Proportional to 48,472.90, 72,709.21 and 15,193.11

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Solution

The fourth proportional to 48,472.90, 72,709.21 and 15,193.11 is: 22,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,472.90 : 72,709.21 = 15,193.11 : x
  2. Step 2: Convert to fraction form
    48,472.90/72,709.21 = 15,193.11/x
  3. Step 3: Cross multiply
    48,472.90x = 72,709.21 × 15,193.11
  4. Step 4: Simplify right side
    48,472.90x = 1,104,679,025.54
  5. Step 5: Solve for x
    x = 1,104,679,025.54/48,472.90
  6. Step 6: Final answer
    x = 22,789.62

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Why These Related Problems?

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