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Finding the Fourth Proportional to 54,379.92, 81,569.88 and 14,937.24

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Solution

The fourth proportional to 54,379.92, 81,569.88 and 14,937.24 is: 22,405.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,379.92 : 81,569.88 = 14,937.24 : x
  2. Step 2: Convert to fraction form
    54,379.92/81,569.88 = 14,937.24/x
  3. Step 3: Cross multiply
    54,379.92x = 81,569.88 × 14,937.24
  4. Step 4: Simplify right side
    54,379.92x = 1,218,428,874.33
  5. Step 5: Solve for x
    x = 1,218,428,874.33/54,379.92
  6. Step 6: Final answer
    x = 22,405.86

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1.5x scale

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.