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Finding the Fourth Proportional to 57,119.46, 78,819.17 and 33,249.30

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Solution

The fourth proportional to 57,119.46, 78,819.17 and 33,249.30 is: 45,880.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,119.46 : 78,819.17 = 33,249.30 : x
  2. Step 2: Convert to fraction form
    57,119.46/78,819.17 = 33,249.30/x
  3. Step 3: Cross multiply
    57,119.46x = 78,819.17 × 33,249.30
  4. Step 4: Simplify right side
    57,119.46x = 2,620,682,229.08
  5. Step 5: Solve for x
    x = 2,620,682,229.08/57,119.46
  6. Step 6: Final answer
    x = 45,880.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.