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Finding the Third Proportional to 2,016.91 and 4,342.85

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Solution

The third proportional to 2,016.91 and 4,342.85 is: 9,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,016.91 : 4,342.85 = 4,342.85 : x
  2. Step 2: Convert to fraction form
    2,016.91/4,342.85 = 4,342.85/x
  3. Step 3: Cross multiply
    2,016.91x = 4,342.85 × 4,342.85
  4. Step 4: Simplify right side
    2,016.91x = 18,860,359.69
  5. Step 5: Solve for x
    x = 18,860,359.69/2,016.91
  6. Step 6: Final answer
    x = 9,351.10

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.