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Finding the Fourth Proportional to 67,213.71, 100,882.80 and 33,957.18

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Solution

The fourth proportional to 67,213.71, 100,882.80 and 33,957.18 is: 50,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,213.71 : 100,882.80 = 33,957.18 : x
  2. Step 2: Convert to fraction form
    67,213.71/100,882.80 = 33,957.18/x
  3. Step 3: Cross multiply
    67,213.71x = 100,882.80 × 33,957.18
  4. Step 4: Simplify right side
    67,213.71x = 3,425,695,398.50
  5. Step 5: Solve for x
    x = 3,425,695,398.50/67,213.71
  6. Step 6: Final answer
    x = 50,967.21

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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.