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Finding the Fourth Proportional to 63,670.25, 87,861.21 and 36,810.86

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Solution

The fourth proportional to 63,670.25, 87,861.21 and 36,810.86 is: 50,796.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,670.25 : 87,861.21 = 36,810.86 : x
  2. Step 2: Convert to fraction form
    63,670.25/87,861.21 = 36,810.86/x
  3. Step 3: Cross multiply
    63,670.25x = 87,861.21 × 36,810.86
  4. Step 4: Simplify right side
    63,670.25x = 3,234,246,123.39
  5. Step 5: Solve for x
    x = 3,234,246,123.39/63,670.25
  6. Step 6: Final answer
    x = 50,796.82

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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.