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Finding the Third Proportional to 18,839,814 and 40,566,419

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Solution

The third proportional to 18,839,814 and 40,566,419 is: 87,348,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839,814 : 40,566,419 = 40,566,419 : x
  2. Step 2: Convert to fraction form
    18,839,814/40,566,419 = 40,566,419/x
  3. Step 3: Cross multiply
    18,839,814x = 40,566,419 × 40,566,419
  4. Step 4: Simplify right side
    18,839,814x = 1,645,634,350,483,561
  5. Step 5: Solve for x
    x = 1,645,634,350,483,561/18,839,814
  6. Step 6: Final answer
    x = 87,348,757.82

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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.