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Finding the Fourth Proportional to 61,691.88, 92,537.82 and 30,495.72

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Solution

The fourth proportional to 61,691.88, 92,537.82 and 30,495.72 is: 45,743.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,691.88 : 92,537.82 = 30,495.72 : x
  2. Step 2: Convert to fraction form
    61,691.88/92,537.82 = 30,495.72/x
  3. Step 3: Cross multiply
    61,691.88x = 92,537.82 × 30,495.72
  4. Step 4: Simplify right side
    61,691.88x = 2,822,007,448.13
  5. Step 5: Solve for x
    x = 2,822,007,448.13/61,691.88
  6. Step 6: Final answer
    x = 45,743.58

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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.