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Finding the Fourth Proportional to 6,516.70, 8,992.11 and 3,722.02

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Solution

The fourth proportional to 6,516.70, 8,992.11 and 3,722.02 is: 5,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.70 : 8,992.11 = 3,722.02 : x
  2. Step 2: Convert to fraction form
    6,516.70/8,992.11 = 3,722.02/x
  3. Step 3: Cross multiply
    6,516.70x = 8,992.11 × 3,722.02
  4. Step 4: Simplify right side
    6,516.70x = 33,468,813.26
  5. Step 5: Solve for x
    x = 33,468,813.26/6,516.70
  6. Step 6: Final answer
    x = 5,135.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.