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Finding the Fourth Proportional to 54,477.62, 81,721.13 and 15,034.74

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Solution

The fourth proportional to 54,477.62, 81,721.13 and 15,034.74 is: 22,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,477.62 : 81,721.13 = 15,034.74 : x
  2. Step 2: Convert to fraction form
    54,477.62/81,721.13 = 15,034.74/x
  3. Step 3: Cross multiply
    54,477.62x = 81,721.13 × 15,034.74
  4. Step 4: Simplify right side
    54,477.62x = 1,228,655,917.12
  5. Step 5: Solve for x
    x = 1,228,655,917.12/54,477.62
  6. Step 6: Final answer
    x = 22,553.40

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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.