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Finding the Third Proportional to 4,393 and 8,163

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Solution

The third proportional to 4,393 and 8,163 is: 15,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,393 : 8,163 = 8,163 : x
  2. Step 2: Convert to fraction form
    4,393/8,163 = 8,163/x
  3. Step 3: Cross multiply
    4,393x = 8,163 × 8,163
  4. Step 4: Simplify right side
    4,393x = 66,634,569
  5. Step 5: Solve for x
    x = 66,634,569/4,393
  6. Step 6: Final answer
    x = 15,168.35

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.