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Finding the Third Proportional to 5,879.25 and 12,912.75

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Solution

The third proportional to 5,879.25 and 12,912.75 is: 28,360.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.25 : 12,912.75 = 12,912.75 : x
  2. Step 2: Convert to fraction form
    5,879.25/12,912.75 = 12,912.75/x
  3. Step 3: Cross multiply
    5,879.25x = 12,912.75 × 12,912.75
  4. Step 4: Simplify right side
    5,879.25x = 166,739,112.56
  5. Step 5: Solve for x
    x = 166,739,112.56/5,879.25
  6. Step 6: Final answer
    x = 28,360.61

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.