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Finding the Fourth Proportional to 54,691, 82,044.42 and 17,238.40

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Solution

The fourth proportional to 54,691, 82,044.42 and 17,238.40 is: 25,860.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,691 : 82,044.42 = 17,238.40 : x
  2. Step 2: Convert to fraction form
    54,691/82,044.42 = 17,238.40/x
  3. Step 3: Cross multiply
    54,691x = 82,044.42 × 17,238.40
  4. Step 4: Simplify right side
    54,691x = 1,414,314,529.73
  5. Step 5: Solve for x
    x = 1,414,314,529.73/54,691
  6. Step 6: Final answer
    x = 25,860.10

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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.