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Finding the Third Proportional to 3,686,124,812 and 8,123,599,249

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Solution

The third proportional to 3,686,124,812 and 8,123,599,249 is: 17,903,046,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686,124,812 : 8,123,599,249 = 8,123,599,249 : x
  2. Step 2: Convert to fraction form
    3,686,124,812/8,123,599,249 = 8,123,599,249/x
  3. Step 3: Cross multiply
    3,686,124,812x = 8,123,599,249 × 8,123,599,249
  4. Step 4: Simplify right side
    3,686,124,812x = 65,992,864,758,353,362,944
  5. Step 5: Solve for x
    x = 65,992,864,758,353,362,944/3,686,124,812
  6. Step 6: Final answer
    x = 17,903,046,729.05

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.