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Finding the Third Proportional to 365.38 and 789.13

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Solution

The third proportional to 365.38 and 789.13 is: 1,704.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.38 : 789.13 = 789.13 : x
  2. Step 2: Convert to fraction form
    365.38/789.13 = 789.13/x
  3. Step 3: Cross multiply
    365.38x = 789.13 × 789.13
  4. Step 4: Simplify right side
    365.38x = 622,718.27
  5. Step 5: Solve for x
    x = 622,718.27/365.38
  6. Step 6: Final answer
    x = 1,704.33

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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.