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Finding the Fourth Proportional to 63,791.94, 95,691.82 and 19,421.98

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Solution

The fourth proportional to 63,791.94, 95,691.82 and 19,421.98 is: 29,134.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,791.94 : 95,691.82 = 19,421.98 : x
  2. Step 2: Convert to fraction form
    63,791.94/95,691.82 = 19,421.98/x
  3. Step 3: Cross multiply
    63,791.94x = 95,691.82 × 19,421.98
  4. Step 4: Simplify right side
    63,791.94x = 1,858,524,614.20
  5. Step 5: Solve for x
    x = 1,858,524,614.20/63,791.94
  6. Step 6: Final answer
    x = 29,134.16

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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.