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Finding the Fourth Proportional to 3,715.72, 5,571.61 and 1,633.32

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Solution

The fourth proportional to 3,715.72, 5,571.61 and 1,633.32 is: 2,449.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.72 : 5,571.61 = 1,633.32 : x
  2. Step 2: Convert to fraction form
    3,715.72/5,571.61 = 1,633.32/x
  3. Step 3: Cross multiply
    3,715.72x = 5,571.61 × 1,633.32
  4. Step 4: Simplify right side
    3,715.72x = 9,100,217.96
  5. Step 5: Solve for x
    x = 9,100,217.96/3,715.72
  6. Step 6: Final answer
    x = 2,449.11

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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.