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Finding the Fourth Proportional to 45,800.43, 68,700.11 and 25,811.43

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Solution

The fourth proportional to 45,800.43, 68,700.11 and 25,811.43 is: 38,716.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,800.43 : 68,700.11 = 25,811.43 : x
  2. Step 2: Convert to fraction form
    45,800.43/68,700.11 = 25,811.43/x
  3. Step 3: Cross multiply
    45,800.43x = 68,700.11 × 25,811.43
  4. Step 4: Simplify right side
    45,800.43x = 1,773,247,951.20
  5. Step 5: Solve for x
    x = 1,773,247,951.20/45,800.43
  6. Step 6: Final answer
    x = 38,716.84

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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.