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Finding the Fourth Proportional to 80,572.40, 120,843.48 and 33,825.68

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Solution

The fourth proportional to 80,572.40, 120,843.48 and 33,825.68 is: 50,732.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,572.40 : 120,843.48 = 33,825.68 : x
  2. Step 2: Convert to fraction form
    80,572.40/120,843.48 = 33,825.68/x
  3. Step 3: Cross multiply
    80,572.40x = 120,843.48 × 33,825.68
  4. Step 4: Simplify right side
    80,572.40x = 4,087,612,884.57
  5. Step 5: Solve for x
    x = 4,087,612,884.57/80,572.40
  6. Step 6: Final answer
    x = 50,732.17

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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.