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Finding the Fourth Proportional to 61,540.50, 92,310.76 and 19,424.83

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Solution

The fourth proportional to 61,540.50, 92,310.76 and 19,424.83 is: 29,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,540.50 : 92,310.76 = 19,424.83 : x
  2. Step 2: Convert to fraction form
    61,540.50/92,310.76 = 19,424.83/x
  3. Step 3: Cross multiply
    61,540.50x = 92,310.76 × 19,424.83
  4. Step 4: Simplify right side
    61,540.50x = 1,793,120,913.19
  5. Step 5: Solve for x
    x = 1,793,120,913.19/61,540.50
  6. Step 6: Final answer
    x = 29,137.25

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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.