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Finding the Fourth Proportional to 61,284.90, 91,916.39 and 16,306.50

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Solution

The fourth proportional to 61,284.90, 91,916.39 and 16,306.50 is: 24,456.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,284.90 : 91,916.39 = 16,306.50 : x
  2. Step 2: Convert to fraction form
    61,284.90/91,916.39 = 16,306.50/x
  3. Step 3: Cross multiply
    61,284.90x = 91,916.39 × 16,306.50
  4. Step 4: Simplify right side
    61,284.90x = 1,498,834,613.54
  5. Step 5: Solve for x
    x = 1,498,834,613.54/61,284.90
  6. Step 6: Final answer
    x = 24,456.83

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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.