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Finding the Fourth Proportional to 41,891.91, 62,824.44 and 13,805.67

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Solution

The fourth proportional to 41,891.91, 62,824.44 and 13,805.67 is: 20,704.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,891.91 : 62,824.44 = 13,805.67 : x
  2. Step 2: Convert to fraction form
    41,891.91/62,824.44 = 13,805.67/x
  3. Step 3: Cross multiply
    41,891.91x = 62,824.44 × 13,805.67
  4. Step 4: Simplify right side
    41,891.91x = 867,333,486.57
  5. Step 5: Solve for x
    x = 867,333,486.57/41,891.91
  6. Step 6: Final answer
    x = 20,704.08

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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.