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Finding the Third Proportional to 6,768 and 11,388

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Solution

The third proportional to 6,768 and 11,388 is: 19,161.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,768 : 11,388 = 11,388 : x
  2. Step 2: Convert to fraction form
    6,768/11,388 = 11,388/x
  3. Step 3: Cross multiply
    6,768x = 11,388 × 11,388
  4. Step 4: Simplify right side
    6,768x = 129,686,544
  5. Step 5: Solve for x
    x = 129,686,544/6,768
  6. Step 6: Final answer
    x = 19,161.72

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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.