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Finding the Fourth Proportional to 54,478.00, 81,721.70 and 15,035.11

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Solution

The fourth proportional to 54,478.00, 81,721.70 and 15,035.11 is: 22,553.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,478.00 : 81,721.70 = 15,035.11 : x
  2. Step 2: Convert to fraction form
    54,478.00/81,721.70 = 15,035.11/x
  3. Step 3: Cross multiply
    54,478.00x = 81,721.70 × 15,035.11
  4. Step 4: Simplify right side
    54,478.00x = 1,228,694,906.87
  5. Step 5: Solve for x
    x = 1,228,694,906.87/54,478.00
  6. Step 6: Final answer
    x = 22,553.97

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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.