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Finding the Third Proportional to 6,162.75 and 6,831

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Solution

The third proportional to 6,162.75 and 6,831 is: 7,571.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,162.75 : 6,831 = 6,831 : x
  2. Step 2: Convert to fraction form
    6,162.75/6,831 = 6,831/x
  3. Step 3: Cross multiply
    6,162.75x = 6,831 × 6,831
  4. Step 4: Simplify right side
    6,162.75x = 46,662,561
  5. Step 5: Solve for x
    x = 46,662,561/6,162.75
  6. Step 6: Final answer
    x = 7,571.71

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.