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Finding the Fourth Proportional to 5,572.92, 8,362.11 and 3,939.96

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Solution

The fourth proportional to 5,572.92, 8,362.11 and 3,939.96 is: 5,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,572.92 : 8,362.11 = 3,939.96 : x
  2. Step 2: Convert to fraction form
    5,572.92/8,362.11 = 3,939.96/x
  3. Step 3: Cross multiply
    5,572.92x = 8,362.11 × 3,939.96
  4. Step 4: Simplify right side
    5,572.92x = 32,946,378.92
  5. Step 5: Solve for x
    x = 32,946,378.92/5,572.92
  6. Step 6: Final answer
    x = 5,911.87

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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.