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Finding the Fourth Proportional to 63,400.88, 87,493.05 and 36,543.17

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Solution

The fourth proportional to 63,400.88, 87,493.05 and 36,543.17 is: 50,429.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,400.88 : 87,493.05 = 36,543.17 : x
  2. Step 2: Convert to fraction form
    63,400.88/87,493.05 = 36,543.17/x
  3. Step 3: Cross multiply
    63,400.88x = 87,493.05 × 36,543.17
  4. Step 4: Simplify right side
    63,400.88x = 3,197,272,962.50
  5. Step 5: Solve for x
    x = 3,197,272,962.50/63,400.88
  6. Step 6: Final answer
    x = 50,429.48

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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.