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Finding the Third Proportional to 3,919,161 and 5,415,573

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Solution

The third proportional to 3,919,161 and 5,415,573 is: 7,483,344.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919,161 : 5,415,573 = 5,415,573 : x
  2. Step 2: Convert to fraction form
    3,919,161/5,415,573 = 5,415,573/x
  3. Step 3: Cross multiply
    3,919,161x = 5,415,573 × 5,415,573
  4. Step 4: Simplify right side
    3,919,161x = 29,328,430,918,329
  5. Step 5: Solve for x
    x = 29,328,430,918,329/3,919,161
  6. Step 6: Final answer
    x = 7,483,344.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.