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Finding the Fourth Proportional to 61,813.28, 92,714.79 and 19,691.66

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Solution

The fourth proportional to 61,813.28, 92,714.79 and 19,691.66 is: 29,535.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,813.28 : 92,714.79 = 19,691.66 : x
  2. Step 2: Convert to fraction form
    61,813.28/92,714.79 = 19,691.66/x
  3. Step 3: Cross multiply
    61,813.28x = 92,714.79 × 19,691.66
  4. Step 4: Simplify right side
    61,813.28x = 1,825,707,822.69
  5. Step 5: Solve for x
    x = 1,825,707,822.69/61,813.28
  6. Step 6: Final answer
    x = 29,535.85

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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.