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Finding the Third Proportional to 18,691,290 and 40,571,226

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Solution

The third proportional to 18,691,290 and 40,571,226 is: 88,063,711.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691,290 : 40,571,226 = 40,571,226 : x
  2. Step 2: Convert to fraction form
    18,691,290/40,571,226 = 40,571,226/x
  3. Step 3: Cross multiply
    18,691,290x = 40,571,226 × 40,571,226
  4. Step 4: Simplify right side
    18,691,290x = 1,646,024,379,143,076
  5. Step 5: Solve for x
    x = 1,646,024,379,143,076/18,691,290
  6. Step 6: Final answer
    x = 88,063,711.98

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.