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Finding the Third Proportional to 6,912 and 16,672

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Solution

The third proportional to 6,912 and 16,672 is: 40,213.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912 : 16,672 = 16,672 : x
  2. Step 2: Convert to fraction form
    6,912/16,672 = 16,672/x
  3. Step 3: Cross multiply
    6,912x = 16,672 × 16,672
  4. Step 4: Simplify right side
    6,912x = 277,955,584
  5. Step 5: Solve for x
    x = 277,955,584/6,912
  6. Step 6: Final answer
    x = 40,213.48

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.