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Finding the Fourth Proportional to 6,868.94, 9,479.09 and 3,725.13

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Solution

The fourth proportional to 6,868.94, 9,479.09 and 3,725.13 is: 5,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.94 : 9,479.09 = 3,725.13 : x
  2. Step 2: Convert to fraction form
    6,868.94/9,479.09 = 3,725.13/x
  3. Step 3: Cross multiply
    6,868.94x = 9,479.09 × 3,725.13
  4. Step 4: Simplify right side
    6,868.94x = 35,310,842.53
  5. Step 5: Solve for x
    x = 35,310,842.53/6,868.94
  6. Step 6: Final answer
    x = 5,140.65

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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.