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Finding the Fourth Proportional to 57,891.83, 86,774.39 and 29,813.58

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Solution

The fourth proportional to 57,891.83, 86,774.39 and 29,813.58 is: 44,687.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,891.83 : 86,774.39 = 29,813.58 : x
  2. Step 2: Convert to fraction form
    57,891.83/86,774.39 = 29,813.58/x
  3. Step 3: Cross multiply
    57,891.83x = 86,774.39 × 29,813.58
  4. Step 4: Simplify right side
    57,891.83x = 2,587,055,180.95
  5. Step 5: Solve for x
    x = 2,587,055,180.95/57,891.83
  6. Step 6: Final answer
    x = 44,687.75

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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.