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Finding the Fourth Proportional to 17,959.22, 26,939.28 and 6,272.44

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Solution

The fourth proportional to 17,959.22, 26,939.28 and 6,272.44 is: 9,408.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,959.22 : 26,939.28 = 6,272.44 : x
  2. Step 2: Convert to fraction form
    17,959.22/26,939.28 = 6,272.44/x
  3. Step 3: Cross multiply
    17,959.22x = 26,939.28 × 6,272.44
  4. Step 4: Simplify right side
    17,959.22x = 168,974,973.62
  5. Step 5: Solve for x
    x = 168,974,973.62/17,959.22
  6. Step 6: Final answer
    x = 9,408.82

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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.