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Finding the Third Proportional to 2,991 and 6,149

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Solution

The third proportional to 2,991 and 6,149 is: 12,641.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991 : 6,149 = 6,149 : x
  2. Step 2: Convert to fraction form
    2,991/6,149 = 6,149/x
  3. Step 3: Cross multiply
    2,991x = 6,149 × 6,149
  4. Step 4: Simplify right side
    2,991x = 37,810,201
  5. Step 5: Solve for x
    x = 37,810,201/2,991
  6. Step 6: Final answer
    x = 12,641.32

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.