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Finding the Fourth Proportional to 6,936.91, 10,404.32 and 2,553.32

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Solution

The fourth proportional to 6,936.91, 10,404.32 and 2,553.32 is: 3,829.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,936.91 : 10,404.32 = 2,553.32 : x
  2. Step 2: Convert to fraction form
    6,936.91/10,404.32 = 2,553.32/x
  3. Step 3: Cross multiply
    6,936.91x = 10,404.32 × 2,553.32
  4. Step 4: Simplify right side
    6,936.91x = 26,565,571.59
  5. Step 5: Solve for x
    x = 26,565,571.59/6,936.91
  6. Step 6: Final answer
    x = 3,829.60

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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.