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Finding the Fourth Proportional to 57,963.83, 86,832.55 and 39,948.83

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Solution

The fourth proportional to 57,963.83, 86,832.55 and 39,948.83 is: 59,845.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,963.83 : 86,832.55 = 39,948.83 : x
  2. Step 2: Convert to fraction form
    57,963.83/86,832.55 = 39,948.83/x
  3. Step 3: Cross multiply
    57,963.83x = 86,832.55 × 39,948.83
  4. Step 4: Simplify right side
    57,963.83x = 3,468,858,895.63
  5. Step 5: Solve for x
    x = 3,468,858,895.63/57,963.83
  6. Step 6: Final answer
    x = 59,845.24

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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.