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Finding the Third Proportional to 19,144,439 and 40,979,920

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Solution

The third proportional to 19,144,439 and 40,979,920 is: 87,720,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144,439 : 40,979,920 = 40,979,920 : x
  2. Step 2: Convert to fraction form
    19,144,439/40,979,920 = 40,979,920/x
  3. Step 3: Cross multiply
    19,144,439x = 40,979,920 × 40,979,920
  4. Step 4: Simplify right side
    19,144,439x = 1,679,353,843,206,400
  5. Step 5: Solve for x
    x = 1,679,353,843,206,400/19,144,439
  6. Step 6: Final answer
    x = 87,720,190.87

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.