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Finding the Third Proportional to 9,992 and 11,336

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Solution

The third proportional to 9,992 and 11,336 is: 12,860.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992 : 11,336 = 11,336 : x
  2. Step 2: Convert to fraction form
    9,992/11,336 = 11,336/x
  3. Step 3: Cross multiply
    9,992x = 11,336 × 11,336
  4. Step 4: Simplify right side
    9,992x = 128,504,896
  5. Step 5: Solve for x
    x = 128,504,896/9,992
  6. Step 6: Final answer
    x = 12,860.78

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.