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Finding the Third Proportional to 18,418,251 and 40,104,069

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Solution

The third proportional to 18,418,251 and 40,104,069 is: 87,322,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418,251 : 40,104,069 = 40,104,069 : x
  2. Step 2: Convert to fraction form
    18,418,251/40,104,069 = 40,104,069/x
  3. Step 3: Cross multiply
    18,418,251x = 40,104,069 × 40,104,069
  4. Step 4: Simplify right side
    18,418,251x = 1,608,336,350,356,761
  5. Step 5: Solve for x
    x = 1,608,336,350,356,761/18,418,251
  6. Step 6: Final answer
    x = 87,322,968.42

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.