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Finding the Third Proportional to 7,992 and 12,767

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Solution

The third proportional to 7,992 and 12,767 is: 20,394.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992 : 12,767 = 12,767 : x
  2. Step 2: Convert to fraction form
    7,992/12,767 = 12,767/x
  3. Step 3: Cross multiply
    7,992x = 12,767 × 12,767
  4. Step 4: Simplify right side
    7,992x = 162,996,289
  5. Step 5: Solve for x
    x = 162,996,289/7,992
  6. Step 6: Final answer
    x = 20,394.93

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.