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Finding the Third Proportional to 3,934.50 and 8,475

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Solution

The third proportional to 3,934.50 and 8,475 is: 18,255.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.50 : 8,475 = 8,475 : x
  2. Step 2: Convert to fraction form
    3,934.50/8,475 = 8,475/x
  3. Step 3: Cross multiply
    3,934.50x = 8,475 × 8,475
  4. Step 4: Simplify right side
    3,934.50x = 71,825,625
  5. Step 5: Solve for x
    x = 71,825,625/3,934.50
  6. Step 6: Final answer
    x = 18,255.34

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.