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Finding the Fourth Proportional to 57,561.62, 86,401.33 and 47,534.43

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Solution

The fourth proportional to 57,561.62, 86,401.33 and 47,534.43 is: 71,350.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,561.62 : 86,401.33 = 47,534.43 : x
  2. Step 2: Convert to fraction form
    57,561.62/86,401.33 = 47,534.43/x
  3. Step 3: Cross multiply
    57,561.62x = 86,401.33 × 47,534.43
  4. Step 4: Simplify right side
    57,561.62x = 4,107,037,853.96
  5. Step 5: Solve for x
    x = 4,107,037,853.96/57,561.62
  6. Step 6: Final answer
    x = 71,350.28

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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.