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Finding the Third Proportional to 6,936 and 11,659.50

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Solution

The third proportional to 6,936 and 11,659.50 is: 19,599.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,936 : 11,659.50 = 11,659.50 : x
  2. Step 2: Convert to fraction form
    6,936/11,659.50 = 11,659.50/x
  3. Step 3: Cross multiply
    6,936x = 11,659.50 × 11,659.50
  4. Step 4: Simplify right side
    6,936x = 135,943,940.25
  5. Step 5: Solve for x
    x = 135,943,940.25/6,936
  6. Step 6: Final answer
    x = 19,599.76

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.