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Finding the Third Proportional to 1,372,269,694 and 2,120,384,197

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Solution

The third proportional to 1,372,269,694 and 2,120,384,197 is: 3,276,345,140.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,269,694 : 2,120,384,197 = 2,120,384,197 : x
  2. Step 2: Convert to fraction form
    1,372,269,694/2,120,384,197 = 2,120,384,197/x
  3. Step 3: Cross multiply
    1,372,269,694x = 2,120,384,197 × 2,120,384,197
  4. Step 4: Simplify right side
    1,372,269,694x = 4,496,029,142,887,334,912
  5. Step 5: Solve for x
    x = 4,496,029,142,887,334,912/1,372,269,694
  6. Step 6: Final answer
    x = 3,276,345,140.13

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.