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Finding the Fourth Proportional to 57,748.20, 86,687.10 and 44,658.60

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Solution

The fourth proportional to 57,748.20, 86,687.10 and 44,658.60 is: 67,038.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,748.20 : 86,687.10 = 44,658.60 : x
  2. Step 2: Convert to fraction form
    57,748.20/86,687.10 = 44,658.60/x
  3. Step 3: Cross multiply
    57,748.20x = 86,687.10 × 44,658.60
  4. Step 4: Simplify right side
    57,748.20x = 3,871,324,524.06
  5. Step 5: Solve for x
    x = 3,871,324,524.06/57,748.20
  6. Step 6: Final answer
    x = 67,038.01

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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.