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Finding the Third Proportional to 18,863,886 and 40,416,963

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Solution

The third proportional to 18,863,886 and 40,416,963 is: 86,595,672.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863,886 : 40,416,963 = 40,416,963 : x
  2. Step 2: Convert to fraction form
    18,863,886/40,416,963 = 40,416,963/x
  3. Step 3: Cross multiply
    18,863,886x = 40,416,963 × 40,416,963
  4. Step 4: Simplify right side
    18,863,886x = 1,633,530,898,143,369
  5. Step 5: Solve for x
    x = 1,633,530,898,143,369/18,863,886
  6. Step 6: Final answer
    x = 86,595,672.71

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.