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Finding the Fourth Proportional to 27,279.35, 40,914.47 and 7,559.90

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Solution

The fourth proportional to 27,279.35, 40,914.47 and 7,559.90 is: 11,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.35 : 40,914.47 = 7,559.90 : x
  2. Step 2: Convert to fraction form
    27,279.35/40,914.47 = 7,559.90/x
  3. Step 3: Cross multiply
    27,279.35x = 40,914.47 × 7,559.90
  4. Step 4: Simplify right side
    27,279.35x = 309,309,422.94
  5. Step 5: Solve for x
    x = 309,309,422.94/27,279.35
  6. Step 6: Final answer
    x = 11,338.59

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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.