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Finding the Third Proportional to 8,482 and 12,975

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Solution

The third proportional to 8,482 and 12,975 is: 19,847.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482 : 12,975 = 12,975 : x
  2. Step 2: Convert to fraction form
    8,482/12,975 = 12,975/x
  3. Step 3: Cross multiply
    8,482x = 12,975 × 12,975
  4. Step 4: Simplify right side
    8,482x = 168,350,625
  5. Step 5: Solve for x
    x = 168,350,625/8,482
  6. Step 6: Final answer
    x = 19,847.99

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.