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Finding the Third Proportional to 4,692 and 8,408

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Solution

The third proportional to 4,692 and 8,408 is: 15,067.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,692 : 8,408 = 8,408 : x
  2. Step 2: Convert to fraction form
    4,692/8,408 = 8,408/x
  3. Step 3: Cross multiply
    4,692x = 8,408 × 8,408
  4. Step 4: Simplify right side
    4,692x = 70,694,464
  5. Step 5: Solve for x
    x = 70,694,464/4,692
  6. Step 6: Final answer
    x = 15,067.02

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.