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Finding the Fourth Proportional to 67,222.80, 100,834.20 and 27,766.80

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Solution

The fourth proportional to 67,222.80, 100,834.20 and 27,766.80 is: 41,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,222.80 : 100,834.20 = 27,766.80 : x
  2. Step 2: Convert to fraction form
    67,222.80/100,834.20 = 27,766.80/x
  3. Step 3: Cross multiply
    67,222.80x = 100,834.20 × 27,766.80
  4. Step 4: Simplify right side
    67,222.80x = 2,799,843,064.56
  5. Step 5: Solve for x
    x = 2,799,843,064.56/67,222.80
  6. Step 6: Final answer
    x = 41,650.20

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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.