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Finding the Fourth Proportional to 16,334.76, 24,489.84 and 8,428.76

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Solution

The fourth proportional to 16,334.76, 24,489.84 and 8,428.76 is: 12,636.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,334.76 : 24,489.84 = 8,428.76 : x
  2. Step 2: Convert to fraction form
    16,334.76/24,489.84 = 8,428.76/x
  3. Step 3: Cross multiply
    16,334.76x = 24,489.84 × 8,428.76
  4. Step 4: Simplify right side
    16,334.76x = 206,418,984.79
  5. Step 5: Solve for x
    x = 206,418,984.79/16,334.76
  6. Step 6: Final answer
    x = 12,636.79

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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.