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Finding the Fourth Proportional to 63,843.38, 95,777.36 and 21,721.76

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Solution

The fourth proportional to 63,843.38, 95,777.36 and 21,721.76 is: 32,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,843.38 : 95,777.36 = 21,721.76 : x
  2. Step 2: Convert to fraction form
    63,843.38/95,777.36 = 21,721.76/x
  3. Step 3: Cross multiply
    63,843.38x = 95,777.36 × 21,721.76
  4. Step 4: Simplify right side
    63,843.38x = 2,080,452,239.86
  5. Step 5: Solve for x
    x = 2,080,452,239.86/63,843.38
  6. Step 6: Final answer
    x = 32,586.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.