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Finding the Fourth Proportional to 17,393.77, 26,078.78 and 8,028.57

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Solution

The fourth proportional to 17,393.77, 26,078.78 and 8,028.57 is: 12,037.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,393.77 : 26,078.78 = 8,028.57 : x
  2. Step 2: Convert to fraction form
    17,393.77/26,078.78 = 8,028.57/x
  3. Step 3: Cross multiply
    17,393.77x = 26,078.78 × 8,028.57
  4. Step 4: Simplify right side
    17,393.77x = 209,375,253.69
  5. Step 5: Solve for x
    x = 209,375,253.69/17,393.77
  6. Step 6: Final answer
    x = 12,037.37

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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.