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Finding the Fourth Proportional to 67,245.62, 100,868.25 and 17,321.54

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Solution

The fourth proportional to 67,245.62, 100,868.25 and 17,321.54 is: 25,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,245.62 : 100,868.25 = 17,321.54 : x
  2. Step 2: Convert to fraction form
    67,245.62/100,868.25 = 17,321.54/x
  3. Step 3: Cross multiply
    67,245.62x = 100,868.25 × 17,321.54
  4. Step 4: Simplify right side
    67,245.62x = 1,747,192,922.76
  5. Step 5: Solve for x
    x = 1,747,192,922.76/67,245.62
  6. Step 6: Final answer
    x = 25,982.26

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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.