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Finding the Third Proportional to 4,811 and 8,105

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Solution

The third proportional to 4,811 and 8,105 is: 13,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811 : 8,105 = 8,105 : x
  2. Step 2: Convert to fraction form
    4,811/8,105 = 8,105/x
  3. Step 3: Cross multiply
    4,811x = 8,105 × 8,105
  4. Step 4: Simplify right side
    4,811x = 65,691,025
  5. Step 5: Solve for x
    x = 65,691,025/4,811
  6. Step 6: Final answer
    x = 13,654.34

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These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.