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Finding the Fourth Proportional to 6,404.33, 8,836.86 and 3,571.09

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Solution

The fourth proportional to 6,404.33, 8,836.86 and 3,571.09 is: 4,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,404.33 : 8,836.86 = 3,571.09 : x
  2. Step 2: Convert to fraction form
    6,404.33/8,836.86 = 3,571.09/x
  3. Step 3: Cross multiply
    6,404.33x = 8,836.86 × 3,571.09
  4. Step 4: Simplify right side
    6,404.33x = 31,557,213.68
  5. Step 5: Solve for x
    x = 31,557,213.68/6,404.33
  6. Step 6: Final answer
    x = 4,927.48

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1.5x scale

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.