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Finding the Third Proportional to 3,326 and 7,991

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Solution

The third proportional to 3,326 and 7,991 is: 19,199.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326 : 7,991 = 7,991 : x
  2. Step 2: Convert to fraction form
    3,326/7,991 = 7,991/x
  3. Step 3: Cross multiply
    3,326x = 7,991 × 7,991
  4. Step 4: Simplify right side
    3,326x = 63,856,081
  5. Step 5: Solve for x
    x = 63,856,081/3,326
  6. Step 6: Final answer
    x = 19,199.06

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These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.