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Finding the Fourth Proportional to 16,812.56, 25,184.82 and 8,480.96

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Solution

The fourth proportional to 16,812.56, 25,184.82 and 8,480.96 is: 12,704.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,812.56 : 25,184.82 = 8,480.96 : x
  2. Step 2: Convert to fraction form
    16,812.56/25,184.82 = 8,480.96/x
  3. Step 3: Cross multiply
    16,812.56x = 25,184.82 × 8,480.96
  4. Step 4: Simplify right side
    16,812.56x = 213,591,451.03
  5. Step 5: Solve for x
    x = 213,591,451.03/16,812.56
  6. Step 6: Final answer
    x = 12,704.28

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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.