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Finding the Fourth Proportional to 63,729.76, 87,937.22 and 36,874.77

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Solution

The fourth proportional to 63,729.76, 87,937.22 and 36,874.77 is: 50,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,729.76 : 87,937.22 = 36,874.77 : x
  2. Step 2: Convert to fraction form
    63,729.76/87,937.22 = 36,874.77/x
  3. Step 3: Cross multiply
    63,729.76x = 87,937.22 × 36,874.77
  4. Step 4: Simplify right side
    63,729.76x = 3,242,664,761.94
  5. Step 5: Solve for x
    x = 3,242,664,761.94/63,729.76
  6. Step 6: Final answer
    x = 50,881.48

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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.