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Finding the Third Proportional to 3,181.78 and 4,954.92

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Solution

The third proportional to 3,181.78 and 4,954.92 is: 7,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.78 : 4,954.92 = 4,954.92 : x
  2. Step 2: Convert to fraction form
    3,181.78/4,954.92 = 4,954.92/x
  3. Step 3: Cross multiply
    3,181.78x = 4,954.92 × 4,954.92
  4. Step 4: Simplify right side
    3,181.78x = 24,551,250.79
  5. Step 5: Solve for x
    x = 24,551,250.79/3,181.78
  6. Step 6: Final answer
    x = 7,716.20

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.