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Finding the Third Proportional to 3,243.38 and 5,079.94

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Solution

The third proportional to 3,243.38 and 5,079.94 is: 7,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.38 : 5,079.94 = 5,079.94 : x
  2. Step 2: Convert to fraction form
    3,243.38/5,079.94 = 5,079.94/x
  3. Step 3: Cross multiply
    3,243.38x = 5,079.94 × 5,079.94
  4. Step 4: Simplify right side
    3,243.38x = 25,805,765.00
  5. Step 5: Solve for x
    x = 25,805,765.00/3,243.38
  6. Step 6: Final answer
    x = 7,956.45

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.