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Finding the Third Proportional to 6,738.19 and 11,881.69

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Solution

The third proportional to 6,738.19 and 11,881.69 is: 20,951.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,738.19 : 11,881.69 = 11,881.69 : x
  2. Step 2: Convert to fraction form
    6,738.19/11,881.69 = 11,881.69/x
  3. Step 3: Cross multiply
    6,738.19x = 11,881.69 × 11,881.69
  4. Step 4: Simplify right side
    6,738.19x = 141,174,497.85
  5. Step 5: Solve for x
    x = 141,174,497.85/6,738.19
  6. Step 6: Final answer
    x = 20,951.41

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.