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Finding the Third Proportional to 725.25 and 1,563.38

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Solution

The third proportional to 725.25 and 1,563.38 is: 3,370.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    725.25 : 1,563.38 = 1,563.38 : x
  2. Step 2: Convert to fraction form
    725.25/1,563.38 = 1,563.38/x
  3. Step 3: Cross multiply
    725.25x = 1,563.38 × 1,563.38
  4. Step 4: Simplify right side
    725.25x = 2,444,141.39
  5. Step 5: Solve for x
    x = 2,444,141.39/725.25
  6. Step 6: Final answer
    x = 3,370.07

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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.