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Finding the Fourth Proportional to 16,906.11, 25,361.48 and 7,043.09

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Solution

The fourth proportional to 16,906.11, 25,361.48 and 7,043.09 is: 10,565.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,906.11 : 25,361.48 = 7,043.09 : x
  2. Step 2: Convert to fraction form
    16,906.11/25,361.48 = 7,043.09/x
  3. Step 3: Cross multiply
    16,906.11x = 25,361.48 × 7,043.09
  4. Step 4: Simplify right side
    16,906.11x = 178,623,024.15
  5. Step 5: Solve for x
    x = 178,623,024.15/16,906.11
  6. Step 6: Final answer
    x = 10,565.59

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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.