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Finding the Third Proportional to 5,404 and 8,266

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Solution

The third proportional to 5,404 and 8,266 is: 12,643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,404 : 8,266 = 8,266 : x
  2. Step 2: Convert to fraction form
    5,404/8,266 = 8,266/x
  3. Step 3: Cross multiply
    5,404x = 8,266 × 8,266
  4. Step 4: Simplify right side
    5,404x = 68,326,756
  5. Step 5: Solve for x
    x = 68,326,756/5,404
  6. Step 6: Final answer
    x = 12,643.74

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.