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Finding the Third Proportional to 4,954 and 7,918

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Solution

The third proportional to 4,954 and 7,918 is: 12,655.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,954 : 7,918 = 7,918 : x
  2. Step 2: Convert to fraction form
    4,954/7,918 = 7,918/x
  3. Step 3: Cross multiply
    4,954x = 7,918 × 7,918
  4. Step 4: Simplify right side
    4,954x = 62,694,724
  5. Step 5: Solve for x
    x = 62,694,724/4,954
  6. Step 6: Final answer
    x = 12,655.37

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.