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Finding the Third Proportional to 1,105.25 and 1,549.38

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Solution

The third proportional to 1,105.25 and 1,549.38 is: 2,171.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105.25 : 1,549.38 = 1,549.38 : x
  2. Step 2: Convert to fraction form
    1,105.25/1,549.38 = 1,549.38/x
  3. Step 3: Cross multiply
    1,105.25x = 1,549.38 × 1,549.38
  4. Step 4: Simplify right side
    1,105.25x = 2,400,562.89
  5. Step 5: Solve for x
    x = 2,400,562.89/1,105.25
  6. Step 6: Final answer
    x = 2,171.96

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.