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Finding the Third Proportional to 6,872 and 10,894

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Solution

The third proportional to 6,872 and 10,894 is: 17,269.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872 : 10,894 = 10,894 : x
  2. Step 2: Convert to fraction form
    6,872/10,894 = 10,894/x
  3. Step 3: Cross multiply
    6,872x = 10,894 × 10,894
  4. Step 4: Simplify right side
    6,872x = 118,679,236
  5. Step 5: Solve for x
    x = 118,679,236/6,872
  6. Step 6: Final answer
    x = 17,269.97

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.