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Finding the Third Proportional to 12,517 and 19,375

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Solution

The third proportional to 12,517 and 19,375 is: 29,990.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517 : 19,375 = 19,375 : x
  2. Step 2: Convert to fraction form
    12,517/19,375 = 19,375/x
  3. Step 3: Cross multiply
    12,517x = 19,375 × 19,375
  4. Step 4: Simplify right side
    12,517x = 375,390,625
  5. Step 5: Solve for x
    x = 375,390,625/12,517
  6. Step 6: Final answer
    x = 29,990.46

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.