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Finding the Fourth Proportional to 63,691.75, 95,537.97 and 19,318.55

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Solution

The fourth proportional to 63,691.75, 95,537.97 and 19,318.55 is: 28,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,691.75 : 95,537.97 = 19,318.55 : x
  2. Step 2: Convert to fraction form
    63,691.75/95,537.97 = 19,318.55/x
  3. Step 3: Cross multiply
    63,691.75x = 95,537.97 × 19,318.55
  4. Step 4: Simplify right side
    63,691.75x = 1,845,655,164.39
  5. Step 5: Solve for x
    x = 1,845,655,164.39/63,691.75
  6. Step 6: Final answer
    x = 28,977.93

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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.