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Finding the Third Proportional to 3,040.88 and 4,320.56

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Solution

The third proportional to 3,040.88 and 4,320.56 is: 6,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.88 : 4,320.56 = 4,320.56 : x
  2. Step 2: Convert to fraction form
    3,040.88/4,320.56 = 4,320.56/x
  3. Step 3: Cross multiply
    3,040.88x = 4,320.56 × 4,320.56
  4. Step 4: Simplify right side
    3,040.88x = 18,667,260.32
  5. Step 5: Solve for x
    x = 18,667,260.32/3,040.88
  6. Step 6: Final answer
    x = 6,138.78

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.