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Finding the Third Proportional to 7,686 and 11,192

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Solution

The third proportional to 7,686 and 11,192 is: 16,297.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686 : 11,192 = 11,192 : x
  2. Step 2: Convert to fraction form
    7,686/11,192 = 11,192/x
  3. Step 3: Cross multiply
    7,686x = 11,192 × 11,192
  4. Step 4: Simplify right side
    7,686x = 125,260,864
  5. Step 5: Solve for x
    x = 125,260,864/7,686
  6. Step 6: Final answer
    x = 16,297.28

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.