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Finding the Fourth Proportional to 67,204.88, 100,829.40 and 33,909.20

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Solution

The fourth proportional to 67,204.88, 100,829.40 and 33,909.20 is: 50,874.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,204.88 : 100,829.40 = 33,909.20 : x
  2. Step 2: Convert to fraction form
    67,204.88/100,829.40 = 33,909.20/x
  3. Step 3: Cross multiply
    67,204.88x = 100,829.40 × 33,909.20
  4. Step 4: Simplify right side
    67,204.88x = 3,419,044,290.48
  5. Step 5: Solve for x
    x = 3,419,044,290.48/67,204.88
  6. Step 6: Final answer
    x = 50,874.94

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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.