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Finding the Fourth Proportional to 84,138.76, 126,230.46 and 24,974.92

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Solution

The fourth proportional to 84,138.76, 126,230.46 and 24,974.92 is: 37,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,138.76 : 126,230.46 = 24,974.92 : x
  2. Step 2: Convert to fraction form
    84,138.76/126,230.46 = 24,974.92/x
  3. Step 3: Cross multiply
    84,138.76x = 126,230.46 × 24,974.92
  4. Step 4: Simplify right side
    84,138.76x = 3,152,595,640.06
  5. Step 5: Solve for x
    x = 3,152,595,640.06/84,138.76
  6. Step 6: Final answer
    x = 37,469.01

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1.5x scale

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.