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Finding the Third Proportional to 3,433,940 and 6,781,408

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Solution

The third proportional to 3,433,940 and 6,781,408 is: 13,392,049.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,433,940 : 6,781,408 = 6,781,408 : x
  2. Step 2: Convert to fraction form
    3,433,940/6,781,408 = 6,781,408/x
  3. Step 3: Cross multiply
    3,433,940x = 6,781,408 × 6,781,408
  4. Step 4: Simplify right side
    3,433,940x = 45,987,494,462,464
  5. Step 5: Solve for x
    x = 45,987,494,462,464/3,433,940
  6. Step 6: Final answer
    x = 13,392,049.50

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.