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Finding the Fourth Proportional to 54,687.62, 82,031.43 and 13,134.62

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Solution

The fourth proportional to 54,687.62, 82,031.43 and 13,134.62 is: 19,701.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,687.62 : 82,031.43 = 13,134.62 : x
  2. Step 2: Convert to fraction form
    54,687.62/82,031.43 = 13,134.62/x
  3. Step 3: Cross multiply
    54,687.62x = 82,031.43 × 13,134.62
  4. Step 4: Simplify right side
    54,687.62x = 1,077,451,250.95
  5. Step 5: Solve for x
    x = 1,077,451,250.95/54,687.62
  6. Step 6: Final answer
    x = 19,701.92

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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.