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Finding the Fourth Proportional to 61,874.76, 92,815.38 and 28,625.88

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Solution

The fourth proportional to 61,874.76, 92,815.38 and 28,625.88 is: 42,940.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,874.76 : 92,815.38 = 28,625.88 : x
  2. Step 2: Convert to fraction form
    61,874.76/92,815.38 = 28,625.88/x
  3. Step 3: Cross multiply
    61,874.76x = 92,815.38 × 28,625.88
  4. Step 4: Simplify right side
    61,874.76x = 2,656,921,930.03
  5. Step 5: Solve for x
    x = 2,656,921,930.03/61,874.76
  6. Step 6: Final answer
    x = 42,940.32

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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.