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Finding the Fourth Proportional to 18,279, 27,418.50 and 5,967

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Solution

The fourth proportional to 18,279, 27,418.50 and 5,967 is: 8,950.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279 : 27,418.50 = 5,967 : x
  2. Step 2: Convert to fraction form
    18,279/27,418.50 = 5,967/x
  3. Step 3: Cross multiply
    18,279x = 27,418.50 × 5,967
  4. Step 4: Simplify right side
    18,279x = 163,606,189.50
  5. Step 5: Solve for x
    x = 163,606,189.50/18,279
  6. Step 6: Final answer
    x = 8,950.50

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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.