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Finding the Third Proportional to 2,171.25 and 5,248.13

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Solution

The third proportional to 2,171.25 and 5,248.13 is: 12,685.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.25 : 5,248.13 = 5,248.13 : x
  2. Step 2: Convert to fraction form
    2,171.25/5,248.13 = 5,248.13/x
  3. Step 3: Cross multiply
    2,171.25x = 5,248.13 × 5,248.13
  4. Step 4: Simplify right side
    2,171.25x = 27,542,816.02
  5. Step 5: Solve for x
    x = 27,542,816.02/2,171.25
  6. Step 6: Final answer
    x = 12,685.23

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.