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Finding the Third Proportional to 3,132 and 6,891.75

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Solution

The third proportional to 3,132 and 6,891.75 is: 15,164.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132 : 6,891.75 = 6,891.75 : x
  2. Step 2: Convert to fraction form
    3,132/6,891.75 = 6,891.75/x
  3. Step 3: Cross multiply
    3,132x = 6,891.75 × 6,891.75
  4. Step 4: Simplify right side
    3,132x = 47,496,218.06
  5. Step 5: Solve for x
    x = 47,496,218.06/3,132
  6. Step 6: Final answer
    x = 15,164.82

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.