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Finding the Fourth Proportional to 57,300.40, 85,972.20 and 27,744.40

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Solution

The fourth proportional to 57,300.40, 85,972.20 and 27,744.40 is: 41,627.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,300.40 : 85,972.20 = 27,744.40 : x
  2. Step 2: Convert to fraction form
    57,300.40/85,972.20 = 27,744.40/x
  3. Step 3: Cross multiply
    57,300.40x = 85,972.20 × 27,744.40
  4. Step 4: Simplify right side
    57,300.40x = 2,385,247,105.68
  5. Step 5: Solve for x
    x = 2,385,247,105.68/57,300.40
  6. Step 6: Final answer
    x = 41,627.06

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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.