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Finding the Fourth Proportional to 6,474.52, 9,709.32 and 2,091.32

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Solution

The fourth proportional to 6,474.52, 9,709.32 and 2,091.32 is: 3,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.52 : 9,709.32 = 2,091.32 : x
  2. Step 2: Convert to fraction form
    6,474.52/9,709.32 = 2,091.32/x
  3. Step 3: Cross multiply
    6,474.52x = 9,709.32 × 2,091.32
  4. Step 4: Simplify right side
    6,474.52x = 20,305,295.10
  5. Step 5: Solve for x
    x = 20,305,295.10/6,474.52
  6. Step 6: Final answer
    x = 3,136.19

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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.