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Finding the Third Proportional to 18,306,760 and 39,448,616

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Solution

The third proportional to 18,306,760 and 39,448,616 is: 85,006,484.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306,760 : 39,448,616 = 39,448,616 : x
  2. Step 2: Convert to fraction form
    18,306,760/39,448,616 = 39,448,616/x
  3. Step 3: Cross multiply
    18,306,760x = 39,448,616 × 39,448,616
  4. Step 4: Simplify right side
    18,306,760x = 1,556,193,304,315,456
  5. Step 5: Solve for x
    x = 1,556,193,304,315,456/18,306,760
  6. Step 6: Final answer
    x = 85,006,484.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.