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Finding the Fourth Proportional to 83,679.87, 125,523.84 and 27,518.73

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Solution

The fourth proportional to 83,679.87, 125,523.84 and 27,518.73 is: 41,279.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,679.87 : 125,523.84 = 27,518.73 : x
  2. Step 2: Convert to fraction form
    83,679.87/125,523.84 = 27,518.73/x
  3. Step 3: Cross multiply
    83,679.87x = 125,523.84 × 27,518.73
  4. Step 4: Simplify right side
    83,679.87x = 3,454,256,661.52
  5. Step 5: Solve for x
    x = 3,454,256,661.52/83,679.87
  6. Step 6: Final answer
    x = 41,279.42

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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.