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Finding the Fourth Proportional to 25,885.60, 38,819.97 and 8,351.33

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Solution

The fourth proportional to 25,885.60, 38,819.97 and 8,351.33 is: 12,524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,885.60 : 38,819.97 = 8,351.33 : x
  2. Step 2: Convert to fraction form
    25,885.60/38,819.97 = 8,351.33/x
  3. Step 3: Cross multiply
    25,885.60x = 38,819.97 × 8,351.33
  4. Step 4: Simplify right side
    25,885.60x = 324,198,380.06
  5. Step 5: Solve for x
    x = 324,198,380.06/25,885.60
  6. Step 6: Final answer
    x = 12,524.28

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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.