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Finding the Fourth Proportional to 63,720.27, 87,934.08 and 35,425.98

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Solution

The fourth proportional to 63,720.27, 87,934.08 and 35,425.98 is: 48,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,720.27 : 87,934.08 = 35,425.98 : x
  2. Step 2: Convert to fraction form
    63,720.27/87,934.08 = 35,425.98/x
  3. Step 3: Cross multiply
    63,720.27x = 87,934.08 × 35,425.98
  4. Step 4: Simplify right side
    63,720.27x = 3,115,150,959.40
  5. Step 5: Solve for x
    x = 3,115,150,959.40/63,720.27
  6. Step 6: Final answer
    x = 48,887.91

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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.