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Finding the Fourth Proportional to 27,279.93, 40,919.95 and 7,558.54

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Solution

The fourth proportional to 27,279.93, 40,919.95 and 7,558.54 is: 11,337.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.93 : 40,919.95 = 7,558.54 : x
  2. Step 2: Convert to fraction form
    27,279.93/40,919.95 = 7,558.54/x
  3. Step 3: Cross multiply
    27,279.93x = 40,919.95 × 7,558.54
  4. Step 4: Simplify right side
    27,279.93x = 309,295,139.47
  5. Step 5: Solve for x
    x = 309,295,139.47/27,279.93
  6. Step 6: Final answer
    x = 11,337.83

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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.