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Finding the Fourth Proportional to 61,691.56, 92,535.66 and 17,318.68

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Solution

The fourth proportional to 61,691.56, 92,535.66 and 17,318.68 is: 25,977.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,691.56 : 92,535.66 = 17,318.68 : x
  2. Step 2: Convert to fraction form
    61,691.56/92,535.66 = 17,318.68/x
  3. Step 3: Cross multiply
    61,691.56x = 92,535.66 × 17,318.68
  4. Step 4: Simplify right side
    61,691.56x = 1,602,595,484.13
  5. Step 5: Solve for x
    x = 1,602,595,484.13/61,691.56
  6. Step 6: Final answer
    x = 25,977.55

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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.