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Finding the Fourth Proportional to 17,591.24, 26,388.24 and 5,111.47

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Solution

The fourth proportional to 17,591.24, 26,388.24 and 5,111.47 is: 7,667.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,591.24 : 26,388.24 = 5,111.47 : x
  2. Step 2: Convert to fraction form
    17,591.24/26,388.24 = 5,111.47/x
  3. Step 3: Cross multiply
    17,591.24x = 26,388.24 × 5,111.47
  4. Step 4: Simplify right side
    17,591.24x = 134,882,697.11
  5. Step 5: Solve for x
    x = 134,882,697.11/17,591.24
  6. Step 6: Final answer
    x = 7,667.61

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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.