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Finding the Fourth Proportional to 57,851.48, 86,857.52 and 29,791.58

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Solution

The fourth proportional to 57,851.48, 86,857.52 and 29,791.58 is: 44,728.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,851.48 : 86,857.52 = 29,791.58 : x
  2. Step 2: Convert to fraction form
    57,851.48/86,857.52 = 29,791.58/x
  3. Step 3: Cross multiply
    57,851.48x = 86,857.52 × 29,791.58
  4. Step 4: Simplify right side
    57,851.48x = 2,587,622,172.44
  5. Step 5: Solve for x
    x = 2,587,622,172.44/57,851.48
  6. Step 6: Final answer
    x = 44,728.72

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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.