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Finding the Fourth Proportional to 61,515.89, 92,273.87 and 17,143.82

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Solution

The fourth proportional to 61,515.89, 92,273.87 and 17,143.82 is: 25,715.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,515.89 : 92,273.87 = 17,143.82 : x
  2. Step 2: Convert to fraction form
    61,515.89/92,273.87 = 17,143.82/x
  3. Step 3: Cross multiply
    61,515.89x = 92,273.87 × 17,143.82
  4. Step 4: Simplify right side
    61,515.89x = 1,581,926,545.50
  5. Step 5: Solve for x
    x = 1,581,926,545.50/61,515.89
  6. Step 6: Final answer
    x = 25,715.74

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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.