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Finding the Third Proportional to 3,116.75 and 6,591.25

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Solution

The third proportional to 3,116.75 and 6,591.25 is: 13,939.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.75 : 6,591.25 = 6,591.25 : x
  2. Step 2: Convert to fraction form
    3,116.75/6,591.25 = 6,591.25/x
  3. Step 3: Cross multiply
    3,116.75x = 6,591.25 × 6,591.25
  4. Step 4: Simplify right side
    3,116.75x = 43,444,576.56
  5. Step 5: Solve for x
    x = 43,444,576.56/3,116.75
  6. Step 6: Final answer
    x = 13,939.06

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.