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Finding the Third Proportional to 3,912 and 6,777

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Solution

The third proportional to 3,912 and 6,777 is: 11,740.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912 : 6,777 = 6,777 : x
  2. Step 2: Convert to fraction form
    3,912/6,777 = 6,777/x
  3. Step 3: Cross multiply
    3,912x = 6,777 × 6,777
  4. Step 4: Simplify right side
    3,912x = 45,927,729
  5. Step 5: Solve for x
    x = 45,927,729/3,912
  6. Step 6: Final answer
    x = 11,740.22

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Why These Related Problems?

These problems maintain the same ratio (1.73) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.