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Finding the Third Proportional to 10,198.50 and 15,375

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Solution

The third proportional to 10,198.50 and 15,375 is: 23,178.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.50 : 15,375 = 15,375 : x
  2. Step 2: Convert to fraction form
    10,198.50/15,375 = 15,375/x
  3. Step 3: Cross multiply
    10,198.50x = 15,375 × 15,375
  4. Step 4: Simplify right side
    10,198.50x = 236,390,625
  5. Step 5: Solve for x
    x = 236,390,625/10,198.50
  6. Step 6: Final answer
    x = 23,178.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.