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Finding the Third Proportional to 3,914 and 8,692

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Solution

The third proportional to 3,914 and 8,692 is: 19,302.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914 : 8,692 = 8,692 : x
  2. Step 2: Convert to fraction form
    3,914/8,692 = 8,692/x
  3. Step 3: Cross multiply
    3,914x = 8,692 × 8,692
  4. Step 4: Simplify right side
    3,914x = 75,550,864
  5. Step 5: Solve for x
    x = 75,550,864/3,914
  6. Step 6: Final answer
    x = 19,302.72

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.