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Finding the Third Proportional to 20,402,474 and 43,107,615

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Solution

The third proportional to 20,402,474 and 43,107,615 is: 91,080,447.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402,474 : 43,107,615 = 43,107,615 : x
  2. Step 2: Convert to fraction form
    20,402,474/43,107,615 = 43,107,615/x
  3. Step 3: Cross multiply
    20,402,474x = 43,107,615 × 43,107,615
  4. Step 4: Simplify right side
    20,402,474x = 1,858,266,470,988,225
  5. Step 5: Solve for x
    x = 1,858,266,470,988,225/20,402,474
  6. Step 6: Final answer
    x = 91,080,447.94

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.