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Finding the Third Proportional to 3,181 and 4,916

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Solution

The third proportional to 3,181 and 4,916 is: 7,597.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181 : 4,916 = 4,916 : x
  2. Step 2: Convert to fraction form
    3,181/4,916 = 4,916/x
  3. Step 3: Cross multiply
    3,181x = 4,916 × 4,916
  4. Step 4: Simplify right side
    3,181x = 24,167,056
  5. Step 5: Solve for x
    x = 24,167,056/3,181
  6. Step 6: Final answer
    x = 7,597.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.