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Finding the Third Proportional to 4,894 and 8,161

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Solution

The third proportional to 4,894 and 8,161 is: 13,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,894 : 8,161 = 8,161 : x
  2. Step 2: Convert to fraction form
    4,894/8,161 = 8,161/x
  3. Step 3: Cross multiply
    4,894x = 8,161 × 8,161
  4. Step 4: Simplify right side
    4,894x = 66,601,921
  5. Step 5: Solve for x
    x = 66,601,921/4,894
  6. Step 6: Final answer
    x = 13,608.89

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.