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Finding the Fourth Proportional to 18,598,906.80, 27,848,593.80 and 11,830,676.40

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Solution

The fourth proportional to 18,598,906.80, 27,848,593.80 and 11,830,676.40 is: 17,714,358.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,598,906.80 : 27,848,593.80 = 11,830,676.40 : x
  2. Step 2: Convert to fraction form
    18,598,906.80/27,848,593.80 = 11,830,676.40/x
  3. Step 3: Cross multiply
    18,598,906.80x = 27,848,593.80 × 11,830,676.40
  4. Step 4: Simplify right side
    18,598,906.80x = 329,467,701,442,846.31
  5. Step 5: Solve for x
    x = 329,467,701,442,846.31/18,598,906.80
  6. Step 6: Final answer
    x = 17,714,358.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.