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Finding the Third Proportional to 913,844,120 and 1,392,192,872

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Solution

The third proportional to 913,844,120 and 1,392,192,872 is: 2,120,931,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,844,120 : 1,392,192,872 = 1,392,192,872 : x
  2. Step 2: Convert to fraction form
    913,844,120/1,392,192,872 = 1,392,192,872/x
  3. Step 3: Cross multiply
    913,844,120x = 1,392,192,872 × 1,392,192,872
  4. Step 4: Simplify right side
    913,844,120x = 1,938,200,992,847,608,320
  5. Step 5: Solve for x
    x = 1,938,200,992,847,608,320/913,844,120
  6. Step 6: Final answer
    x = 2,120,931,732.70

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.