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Finding the Third Proportional to 49,309 and 73,879

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Solution

The third proportional to 49,309 and 73,879 is: 110,691.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,309 : 73,879 = 73,879 : x
  2. Step 2: Convert to fraction form
    49,309/73,879 = 73,879/x
  3. Step 3: Cross multiply
    49,309x = 73,879 × 73,879
  4. Step 4: Simplify right side
    49,309x = 5,458,106,641
  5. Step 5: Solve for x
    x = 5,458,106,641/49,309
  6. Step 6: Final answer
    x = 110,691.89

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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.