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Finding the Third Proportional to 7,933 and 11,879

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Solution

The third proportional to 7,933 and 11,879 is: 17,787.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,933 : 11,879 = 11,879 : x
  2. Step 2: Convert to fraction form
    7,933/11,879 = 11,879/x
  3. Step 3: Cross multiply
    7,933x = 11,879 × 11,879
  4. Step 4: Simplify right side
    7,933x = 141,110,641
  5. Step 5: Solve for x
    x = 141,110,641/7,933
  6. Step 6: Final answer
    x = 17,787.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.