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Finding the Third Proportional to 4,424 and 6,789.75

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Solution

The third proportional to 4,424 and 6,789.75 is: 10,420.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,424 : 6,789.75 = 6,789.75 : x
  2. Step 2: Convert to fraction form
    4,424/6,789.75 = 6,789.75/x
  3. Step 3: Cross multiply
    4,424x = 6,789.75 × 6,789.75
  4. Step 4: Simplify right side
    4,424x = 46,100,705.06
  5. Step 5: Solve for x
    x = 46,100,705.06/4,424
  6. Step 6: Final answer
    x = 10,420.59

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.