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Finding the Third Proportional to 18,889,956 and 40,049,928

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Solution

The third proportional to 18,889,956 and 40,049,928 is: 84,912,677.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889,956 : 40,049,928 = 40,049,928 : x
  2. Step 2: Convert to fraction form
    18,889,956/40,049,928 = 40,049,928/x
  3. Step 3: Cross multiply
    18,889,956x = 40,049,928 × 40,049,928
  4. Step 4: Simplify right side
    18,889,956x = 1,603,996,732,805,184
  5. Step 5: Solve for x
    x = 1,603,996,732,805,184/18,889,956
  6. Step 6: Final answer
    x = 84,912,677.02

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.