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Finding the Third Proportional to 18,811,638.56 and 41,322,605.63

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Solution

The third proportional to 18,811,638.56 and 41,322,605.63 is: 90,771,345.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811,638.56 : 41,322,605.63 = 41,322,605.63 : x
  2. Step 2: Convert to fraction form
    18,811,638.56/41,322,605.63 = 41,322,605.63/x
  3. Step 3: Cross multiply
    18,811,638.56x = 41,322,605.63 × 41,322,605.63
  4. Step 4: Simplify right side
    18,811,638.56x = 1,707,557,735,639,281.75
  5. Step 5: Solve for x
    x = 1,707,557,735,639,281.75/18,811,638.56
  6. Step 6: Final answer
    x = 90,771,345.09

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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.