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Finding the Third Proportional to 12,491,080 and 18,632,992

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Solution

The third proportional to 12,491,080 and 18,632,992 is: 27,794,905.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491,080 : 18,632,992 = 18,632,992 : x
  2. Step 2: Convert to fraction form
    12,491,080/18,632,992 = 18,632,992/x
  3. Step 3: Cross multiply
    12,491,080x = 18,632,992 × 18,632,992
  4. Step 4: Simplify right side
    12,491,080x = 347,188,390,872,064
  5. Step 5: Solve for x
    x = 347,188,390,872,064/12,491,080
  6. Step 6: Final answer
    x = 27,794,905.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.