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Finding the Fourth Proportional to 17,425.92, 26,135.79 and 7,936.06

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Solution

The fourth proportional to 17,425.92, 26,135.79 and 7,936.06 is: 11,902.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,425.92 : 26,135.79 = 7,936.06 : x
  2. Step 2: Convert to fraction form
    17,425.92/26,135.79 = 7,936.06/x
  3. Step 3: Cross multiply
    17,425.92x = 26,135.79 × 7,936.06
  4. Step 4: Simplify right side
    17,425.92x = 207,415,197.59
  5. Step 5: Solve for x
    x = 207,415,197.59/17,425.92
  6. Step 6: Final answer
    x = 11,902.68

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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.