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Finding the Fourth Proportional to 17,205.90, 25,809.39 and 6,112.41

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Solution

The fourth proportional to 17,205.90, 25,809.39 and 6,112.41 is: 9,168.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,205.90 : 25,809.39 = 6,112.41 : x
  2. Step 2: Convert to fraction form
    17,205.90/25,809.39 = 6,112.41/x
  3. Step 3: Cross multiply
    17,205.90x = 25,809.39 × 6,112.41
  4. Step 4: Simplify right side
    17,205.90x = 157,757,573.53
  5. Step 5: Solve for x
    x = 157,757,573.53/17,205.90
  6. Step 6: Final answer
    x = 9,168.81

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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.