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Finding the Fourth Proportional to 67,213.70, 100,882.82 and 33,957.20

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Solution

The fourth proportional to 67,213.70, 100,882.82 and 33,957.20 is: 50,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,213.70 : 100,882.82 = 33,957.20 : x
  2. Step 2: Convert to fraction form
    67,213.70/100,882.82 = 33,957.20/x
  3. Step 3: Cross multiply
    67,213.70x = 100,882.82 × 33,957.20
  4. Step 4: Simplify right side
    67,213.70x = 3,425,697,421.10
  5. Step 5: Solve for x
    x = 3,425,697,421.10/67,213.70
  6. Step 6: Final answer
    x = 50,967.25

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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.