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Finding the Third Proportional to 2,918 and 3,775

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Solution

The third proportional to 2,918 and 3,775 is: 4,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918 : 3,775 = 3,775 : x
  2. Step 2: Convert to fraction form
    2,918/3,775 = 3,775/x
  3. Step 3: Cross multiply
    2,918x = 3,775 × 3,775
  4. Step 4: Simplify right side
    2,918x = 14,250,625
  5. Step 5: Solve for x
    x = 14,250,625/2,918
  6. Step 6: Final answer
    x = 4,883.70

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.