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Finding the Third Proportional to 3,186 and 4,839.75

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Solution

The third proportional to 3,186 and 4,839.75 is: 7,351.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186 : 4,839.75 = 4,839.75 : x
  2. Step 2: Convert to fraction form
    3,186/4,839.75 = 4,839.75/x
  3. Step 3: Cross multiply
    3,186x = 4,839.75 × 4,839.75
  4. Step 4: Simplify right side
    3,186x = 23,423,180.06
  5. Step 5: Solve for x
    x = 23,423,180.06/3,186
  6. Step 6: Final answer
    x = 7,351.91

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.