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Finding the Third Proportional to 4,768.50 and 6,879

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Solution

The third proportional to 4,768.50 and 6,879 is: 9,923.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,768.50 : 6,879 = 6,879 : x
  2. Step 2: Convert to fraction form
    4,768.50/6,879 = 6,879/x
  3. Step 3: Cross multiply
    4,768.50x = 6,879 × 6,879
  4. Step 4: Simplify right side
    4,768.50x = 47,320,641
  5. Step 5: Solve for x
    x = 47,320,641/4,768.50
  6. Step 6: Final answer
    x = 9,923.59

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.