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Finding the Third Proportional to 3,199,655.25 and 6,997,920.75

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Solution

The third proportional to 3,199,655.25 and 6,997,920.75 is: 15,305,053.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199,655.25 : 6,997,920.75 = 6,997,920.75 : x
  2. Step 2: Convert to fraction form
    3,199,655.25/6,997,920.75 = 6,997,920.75/x
  3. Step 3: Cross multiply
    3,199,655.25x = 6,997,920.75 × 6,997,920.75
  4. Step 4: Simplify right side
    3,199,655.25x = 48,970,894,823,280.56
  5. Step 5: Solve for x
    x = 48,970,894,823,280.56/3,199,655.25
  6. Step 6: Final answer
    x = 15,305,053.51

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.