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Finding the Fourth Proportional to 67,266.70, 100,912.20 and 33,902.80

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Solution

The fourth proportional to 67,266.70, 100,912.20 and 33,902.80 is: 50,860.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,266.70 : 100,912.20 = 33,902.80 : x
  2. Step 2: Convert to fraction form
    67,266.70/100,912.20 = 33,902.80/x
  3. Step 3: Cross multiply
    67,266.70x = 100,912.20 × 33,902.80
  4. Step 4: Simplify right side
    67,266.70x = 3,421,206,134.16
  5. Step 5: Solve for x
    x = 3,421,206,134.16/67,266.70
  6. Step 6: Final answer
    x = 50,860.32

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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.