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Finding the Third Proportional to 18,586,186 and 40,260,821

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Solution

The third proportional to 18,586,186 and 40,260,821 is: 87,211,744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586,186 : 40,260,821 = 40,260,821 : x
  2. Step 2: Convert to fraction form
    18,586,186/40,260,821 = 40,260,821/x
  3. Step 3: Cross multiply
    18,586,186x = 40,260,821 × 40,260,821
  4. Step 4: Simplify right side
    18,586,186x = 1,620,933,707,594,041
  5. Step 5: Solve for x
    x = 1,620,933,707,594,041/18,586,186
  6. Step 6: Final answer
    x = 87,211,744.66

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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.