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Finding the Fourth Proportional to 54,778.80, 82,143.90 and 25,205.70

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Solution

The fourth proportional to 54,778.80, 82,143.90 and 25,205.70 is: 37,797.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,778.80 : 82,143.90 = 25,205.70 : x
  2. Step 2: Convert to fraction form
    54,778.80/82,143.90 = 25,205.70/x
  3. Step 3: Cross multiply
    54,778.80x = 82,143.90 × 25,205.70
  4. Step 4: Simplify right side
    54,778.80x = 2,070,494,500.23
  5. Step 5: Solve for x
    x = 2,070,494,500.23/54,778.80
  6. Step 6: Final answer
    x = 37,797.37

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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.