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Finding the Third Proportional to 5,991 and 12,918

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Solution

The third proportional to 5,991 and 12,918 is: 27,854.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,991 : 12,918 = 12,918 : x
  2. Step 2: Convert to fraction form
    5,991/12,918 = 12,918/x
  3. Step 3: Cross multiply
    5,991x = 12,918 × 12,918
  4. Step 4: Simplify right side
    5,991x = 166,874,724
  5. Step 5: Solve for x
    x = 166,874,724/5,991
  6. Step 6: Final answer
    x = 27,854.24

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.