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Finding the Fourth Proportional to 6,869.75, 9,480.26 and 3,725.95

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Solution

The fourth proportional to 6,869.75, 9,480.26 and 3,725.95 is: 5,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.75 : 9,480.26 = 3,725.95 : x
  2. Step 2: Convert to fraction form
    6,869.75/9,480.26 = 3,725.95/x
  3. Step 3: Cross multiply
    6,869.75x = 9,480.26 × 3,725.95
  4. Step 4: Simplify right side
    6,869.75x = 35,322,974.75
  5. Step 5: Solve for x
    x = 35,322,974.75/6,869.75
  6. Step 6: Final answer
    x = 5,141.81

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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.