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Finding the Third Proportional to 3,674 and 7,912

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Solution

The third proportional to 3,674 and 7,912 is: 17,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,674 : 7,912 = 7,912 : x
  2. Step 2: Convert to fraction form
    3,674/7,912 = 7,912/x
  3. Step 3: Cross multiply
    3,674x = 7,912 × 7,912
  4. Step 4: Simplify right side
    3,674x = 62,599,744
  5. Step 5: Solve for x
    x = 62,599,744/3,674
  6. Step 6: Final answer
    x = 17,038.58

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.