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Finding the Third Proportional to 1,884 and 3,918

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Solution

The third proportional to 1,884 and 3,918 is: 8,147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884 : 3,918 = 3,918 : x
  2. Step 2: Convert to fraction form
    1,884/3,918 = 3,918/x
  3. Step 3: Cross multiply
    1,884x = 3,918 × 3,918
  4. Step 4: Simplify right side
    1,884x = 15,350,724
  5. Step 5: Solve for x
    x = 15,350,724/1,884
  6. Step 6: Final answer
    x = 8,147.94

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.