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Finding the Third Proportional to 3,144.75 and 4,995

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Solution

The third proportional to 3,144.75 and 4,995 is: 7,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.75 : 4,995 = 4,995 : x
  2. Step 2: Convert to fraction form
    3,144.75/4,995 = 4,995/x
  3. Step 3: Cross multiply
    3,144.75x = 4,995 × 4,995
  4. Step 4: Simplify right side
    3,144.75x = 24,950,025
  5. Step 5: Solve for x
    x = 24,950,025/3,144.75
  6. Step 6: Final answer
    x = 7,933.87

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.