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Finding the Third Proportional to 18,181,647 and 39,247,454

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Solution

The third proportional to 18,181,647 and 39,247,454 is: 84,720,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181,647 : 39,247,454 = 39,247,454 : x
  2. Step 2: Convert to fraction form
    18,181,647/39,247,454 = 39,247,454/x
  3. Step 3: Cross multiply
    18,181,647x = 39,247,454 × 39,247,454
  4. Step 4: Simplify right side
    18,181,647x = 1,540,362,645,482,116
  5. Step 5: Solve for x
    x = 1,540,362,645,482,116/18,181,647
  6. Step 6: Final answer
    x = 84,720,743.15

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.