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Finding the Fourth Proportional to 27,299.38, 40,944.29 and 7,579.47

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Solution

The fourth proportional to 27,299.38, 40,944.29 and 7,579.47 is: 11,367.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,299.38 : 40,944.29 = 7,579.47 : x
  2. Step 2: Convert to fraction form
    27,299.38/40,944.29 = 7,579.47/x
  3. Step 3: Cross multiply
    27,299.38x = 40,944.29 × 7,579.47
  4. Step 4: Simplify right side
    27,299.38x = 310,336,133.37
  5. Step 5: Solve for x
    x = 310,336,133.37/27,299.38
  6. Step 6: Final answer
    x = 11,367.88

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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.