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Finding the Fourth Proportional to 25,472.80, 38,209.20 and 23,723.20

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Solution

The fourth proportional to 25,472.80, 38,209.20 and 23,723.20 is: 35,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,472.80 : 38,209.20 = 23,723.20 : x
  2. Step 2: Convert to fraction form
    25,472.80/38,209.20 = 23,723.20/x
  3. Step 3: Cross multiply
    25,472.80x = 38,209.20 × 23,723.20
  4. Step 4: Simplify right side
    25,472.80x = 906,444,493.44
  5. Step 5: Solve for x
    x = 906,444,493.44/25,472.80
  6. Step 6: Final answer
    x = 35,584.80

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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.