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Finding the Third Proportional to 12,538 and 16,712

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Solution

The third proportional to 12,538 and 16,712 is: 22,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538 : 16,712 = 16,712 : x
  2. Step 2: Convert to fraction form
    12,538/16,712 = 16,712/x
  3. Step 3: Cross multiply
    12,538x = 16,712 × 16,712
  4. Step 4: Simplify right side
    12,538x = 279,290,944
  5. Step 5: Solve for x
    x = 279,290,944/12,538
  6. Step 6: Final answer
    x = 22,275.56

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.