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Finding the Third Proportional to 3,936,121 and 6,427,331

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Solution

The third proportional to 3,936,121 and 6,427,331 is: 10,495,252.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936,121 : 6,427,331 = 6,427,331 : x
  2. Step 2: Convert to fraction form
    3,936,121/6,427,331 = 6,427,331/x
  3. Step 3: Cross multiply
    3,936,121x = 6,427,331 × 6,427,331
  4. Step 4: Simplify right side
    3,936,121x = 41,310,583,783,561
  5. Step 5: Solve for x
    x = 41,310,583,783,561/3,936,121
  6. Step 6: Final answer
    x = 10,495,252.50

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.