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Finding the Third Proportional to 11,889,854 and 18,218,595

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Solution

The third proportional to 11,889,854 and 18,218,595 is: 27,916,003.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889,854 : 18,218,595 = 18,218,595 : x
  2. Step 2: Convert to fraction form
    11,889,854/18,218,595 = 18,218,595/x
  3. Step 3: Cross multiply
    11,889,854x = 18,218,595 × 18,218,595
  4. Step 4: Simplify right side
    11,889,854x = 331,917,203,774,025
  5. Step 5: Solve for x
    x = 331,917,203,774,025/11,889,854
  6. Step 6: Final answer
    x = 27,916,003.32

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These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.