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Finding the Fourth Proportional to 54,757.92, 82,137.15 and 15,318.48

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Solution

The fourth proportional to 54,757.92, 82,137.15 and 15,318.48 is: 22,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,757.92 : 82,137.15 = 15,318.48 : x
  2. Step 2: Convert to fraction form
    54,757.92/82,137.15 = 15,318.48/x
  3. Step 3: Cross multiply
    54,757.92x = 82,137.15 × 15,318.48
  4. Step 4: Simplify right side
    54,757.92x = 1,258,216,289.53
  5. Step 5: Solve for x
    x = 1,258,216,289.53/54,757.92
  6. Step 6: Final answer
    x = 22,977.80

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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.