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Finding the Third Proportional to 19,305,387 and 39,947,112

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Solution

The third proportional to 19,305,387 and 39,947,112 is: 82,659,402.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305,387 : 39,947,112 = 39,947,112 : x
  2. Step 2: Convert to fraction form
    19,305,387/39,947,112 = 39,947,112/x
  3. Step 3: Cross multiply
    19,305,387x = 39,947,112 × 39,947,112
  4. Step 4: Simplify right side
    19,305,387x = 1,595,771,757,140,544
  5. Step 5: Solve for x
    x = 1,595,771,757,140,544/19,305,387
  6. Step 6: Final answer
    x = 82,659,402.64

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.