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Finding the Third Proportional to 2,171,976.75 and 3,285,987.75

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Solution

The third proportional to 2,171,976.75 and 3,285,987.75 is: 4,971,377.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,976.75 : 3,285,987.75 = 3,285,987.75 : x
  2. Step 2: Convert to fraction form
    2,171,976.75/3,285,987.75 = 3,285,987.75/x
  3. Step 3: Cross multiply
    2,171,976.75x = 3,285,987.75 × 3,285,987.75
  4. Step 4: Simplify right side
    2,171,976.75x = 10,797,715,493,150.06
  5. Step 5: Solve for x
    x = 10,797,715,493,150.06/2,171,976.75
  6. Step 6: Final answer
    x = 4,971,377.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.