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Finding the Fourth Proportional to 67,434.80, 101,152.20 and 25,314.80

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Solution

The fourth proportional to 67,434.80, 101,152.20 and 25,314.80 is: 37,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,434.80 : 101,152.20 = 25,314.80 : x
  2. Step 2: Convert to fraction form
    67,434.80/101,152.20 = 25,314.80/x
  3. Step 3: Cross multiply
    67,434.80x = 101,152.20 × 25,314.80
  4. Step 4: Simplify right side
    67,434.80x = 2,560,647,712.56
  5. Step 5: Solve for x
    x = 2,560,647,712.56/67,434.80
  6. Step 6: Final answer
    x = 37,972.20

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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.