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Finding the Fourth Proportional to 16,822.60, 25,233.90 and 15,729.10

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Solution

The fourth proportional to 16,822.60, 25,233.90 and 15,729.10 is: 23,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,822.60 : 25,233.90 = 15,729.10 : x
  2. Step 2: Convert to fraction form
    16,822.60/25,233.90 = 15,729.10/x
  3. Step 3: Cross multiply
    16,822.60x = 25,233.90 × 15,729.10
  4. Step 4: Simplify right side
    16,822.60x = 396,906,536.49
  5. Step 5: Solve for x
    x = 396,906,536.49/16,822.60
  6. Step 6: Final answer
    x = 23,593.65

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Similar ratio
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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.