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Finding the Third Proportional to 3,112 and 6,800

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Solution

The third proportional to 3,112 and 6,800 is: 14,858.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112 : 6,800 = 6,800 : x
  2. Step 2: Convert to fraction form
    3,112/6,800 = 6,800/x
  3. Step 3: Cross multiply
    3,112x = 6,800 × 6,800
  4. Step 4: Simplify right side
    3,112x = 46,240,000
  5. Step 5: Solve for x
    x = 46,240,000/3,112
  6. Step 6: Final answer
    x = 14,858.61

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.