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Finding the Third Proportional to 3,112.84 and 6,687.01

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Solution

The third proportional to 3,112.84 and 6,687.01 is: 14,365.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.84 : 6,687.01 = 6,687.01 : x
  2. Step 2: Convert to fraction form
    3,112.84/6,687.01 = 6,687.01/x
  3. Step 3: Cross multiply
    3,112.84x = 6,687.01 × 6,687.01
  4. Step 4: Simplify right side
    3,112.84x = 44,716,086.54
  5. Step 5: Solve for x
    x = 44,716,086.54/3,112.84
  6. Step 6: Final answer
    x = 14,365.03

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.