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Finding the Third Proportional to 6,678 and 8,922

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Solution

The third proportional to 6,678 and 8,922 is: 11,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678 : 8,922 = 8,922 : x
  2. Step 2: Convert to fraction form
    6,678/8,922 = 8,922/x
  3. Step 3: Cross multiply
    6,678x = 8,922 × 8,922
  4. Step 4: Simplify right side
    6,678x = 79,602,084
  5. Step 5: Solve for x
    x = 79,602,084/6,678
  6. Step 6: Final answer
    x = 11,920.05

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.