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Finding the Fourth Proportional to 57,493.65, 86,251.43 and 20,064.41

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Solution

The fourth proportional to 57,493.65, 86,251.43 and 20,064.41 is: 30,100.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,493.65 : 86,251.43 = 20,064.41 : x
  2. Step 2: Convert to fraction form
    57,493.65/86,251.43 = 20,064.41/x
  3. Step 3: Cross multiply
    57,493.65x = 86,251.43 × 20,064.41
  4. Step 4: Simplify right side
    57,493.65x = 1,730,583,996.95
  5. Step 5: Solve for x
    x = 1,730,583,996.95/57,493.65
  6. Step 6: Final answer
    x = 30,100.44

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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.