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Finding the Fourth Proportional to 64,013.76, 95,380.47 and 57,029.94

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Solution

The fourth proportional to 64,013.76, 95,380.47 and 57,029.94 is: 84,974.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,013.76 : 95,380.47 = 57,029.94 : x
  2. Step 2: Convert to fraction form
    64,013.76/95,380.47 = 57,029.94/x
  3. Step 3: Cross multiply
    64,013.76x = 95,380.47 × 57,029.94
  4. Step 4: Simplify right side
    64,013.76x = 5,439,542,481.27
  5. Step 5: Solve for x
    x = 5,439,542,481.27/64,013.76
  6. Step 6: Final answer
    x = 84,974.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.