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Finding the Third Proportional to 1,780,213,920 and 3,610,737,408

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Solution

The third proportional to 1,780,213,920 and 3,610,737,408 is: 7,323,515,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,213,920 : 3,610,737,408 = 3,610,737,408 : x
  2. Step 2: Convert to fraction form
    1,780,213,920/3,610,737,408 = 3,610,737,408/x
  3. Step 3: Cross multiply
    1,780,213,920x = 3,610,737,408 × 3,610,737,408
  4. Step 4: Simplify right side
    1,780,213,920x = 13,037,424,629,530,558,464
  5. Step 5: Solve for x
    x = 13,037,424,629,530,558,464/1,780,213,920
  6. Step 6: Final answer
    x = 7,323,515,720.81

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.