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Finding the Fourth Proportional to 38,474.60, 57,711.90 and 17,738.60

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Solution

The fourth proportional to 38,474.60, 57,711.90 and 17,738.60 is: 26,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,474.60 : 57,711.90 = 17,738.60 : x
  2. Step 2: Convert to fraction form
    38,474.60/57,711.90 = 17,738.60/x
  3. Step 3: Cross multiply
    38,474.60x = 57,711.90 × 17,738.60
  4. Step 4: Simplify right side
    38,474.60x = 1,023,728,309.34
  5. Step 5: Solve for x
    x = 1,023,728,309.34/38,474.60
  6. Step 6: Final answer
    x = 26,607.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.