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Finding the Fourth Proportional to 54,863.68, 82,295.52 and 15,424.80

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Solution

The fourth proportional to 54,863.68, 82,295.52 and 15,424.80 is: 23,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,863.68 : 82,295.52 = 15,424.80 : x
  2. Step 2: Convert to fraction form
    54,863.68/82,295.52 = 15,424.80/x
  3. Step 3: Cross multiply
    54,863.68x = 82,295.52 × 15,424.80
  4. Step 4: Simplify right side
    54,863.68x = 1,269,391,936.90
  5. Step 5: Solve for x
    x = 1,269,391,936.90/54,863.68
  6. Step 6: Final answer
    x = 23,137.20

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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.