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Finding the Third Proportional to 12,208,676.91 and 18,895,406.63

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Solution

The third proportional to 12,208,676.91 and 18,895,406.63 is: 29,244,478.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208,676.91 : 18,895,406.63 = 18,895,406.63 : x
  2. Step 2: Convert to fraction form
    12,208,676.91/18,895,406.63 = 18,895,406.63/x
  3. Step 3: Cross multiply
    12,208,676.91x = 18,895,406.63 × 18,895,406.63
  4. Step 4: Simplify right side
    12,208,676.91x = 357,036,391,524,093.88
  5. Step 5: Solve for x
    x = 357,036,391,524,093.88/12,208,676.91
  6. Step 6: Final answer
    x = 29,244,478.68

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.