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Finding the Fourth Proportional to 63,616.44, 87,814.26 and 54,627.87

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Solution

The fourth proportional to 63,616.44, 87,814.26 and 54,627.87 is: 75,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,616.44 : 87,814.26 = 54,627.87 : x
  2. Step 2: Convert to fraction form
    63,616.44/87,814.26 = 54,627.87/x
  3. Step 3: Cross multiply
    63,616.44x = 87,814.26 × 54,627.87
  4. Step 4: Simplify right side
    63,616.44x = 4,797,105,979.43
  5. Step 5: Solve for x
    x = 4,797,105,979.43/63,616.44
  6. Step 6: Final answer
    x = 75,406.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.