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Finding the Third Proportional to 20,186,578 and 43,780,503

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Solution

The third proportional to 20,186,578 and 43,780,503 is: 94,950,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,578 : 43,780,503 = 43,780,503 : x
  2. Step 2: Convert to fraction form
    20,186,578/43,780,503 = 43,780,503/x
  3. Step 3: Cross multiply
    20,186,578x = 43,780,503 × 43,780,503
  4. Step 4: Simplify right side
    20,186,578x = 1,916,732,442,933,009
  5. Step 5: Solve for x
    x = 1,916,732,442,933,009/20,186,578
  6. Step 6: Final answer
    x = 94,950,835.30

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