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Finding the Fourth Proportional to 10,811.79, 16,211.92 and 5,544.67

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Solution

The fourth proportional to 10,811.79, 16,211.92 and 5,544.67 is: 8,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.79 : 16,211.92 = 5,544.67 : x
  2. Step 2: Convert to fraction form
    10,811.79/16,211.92 = 5,544.67/x
  3. Step 3: Cross multiply
    10,811.79x = 16,211.92 × 5,544.67
  4. Step 4: Simplify right side
    10,811.79x = 89,889,692.07
  5. Step 5: Solve for x
    x = 89,889,692.07/10,811.79
  6. Step 6: Final answer
    x = 8,314.04

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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.