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Finding the Third Proportional to 8,690,099 and 13,147,005

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Solution

The third proportional to 8,690,099 and 13,147,005 is: 19,889,732.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690,099 : 13,147,005 = 13,147,005 : x
  2. Step 2: Convert to fraction form
    8,690,099/13,147,005 = 13,147,005/x
  3. Step 3: Cross multiply
    8,690,099x = 13,147,005 × 13,147,005
  4. Step 4: Simplify right side
    8,690,099x = 172,843,740,470,025
  5. Step 5: Solve for x
    x = 172,843,740,470,025/8,690,099
  6. Step 6: Final answer
    x = 19,889,732.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.