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Finding the Fourth Proportional to 17,919.54, 26,879.44 and 10,126.52

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Solution

The fourth proportional to 17,919.54, 26,879.44 and 10,126.52 is: 15,189.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,919.54 : 26,879.44 = 10,126.52 : x
  2. Step 2: Convert to fraction form
    17,919.54/26,879.44 = 10,126.52/x
  3. Step 3: Cross multiply
    17,919.54x = 26,879.44 × 10,126.52
  4. Step 4: Simplify right side
    17,919.54x = 272,195,186.75
  5. Step 5: Solve for x
    x = 272,195,186.75/17,919.54
  6. Step 6: Final answer
    x = 15,189.85

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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.