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Finding the Fourth Proportional to 6,869.22, 9,479.51 and 3,725.41

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Solution

The fourth proportional to 6,869.22, 9,479.51 and 3,725.41 is: 5,141.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.22 : 9,479.51 = 3,725.41 : x
  2. Step 2: Convert to fraction form
    6,869.22/9,479.51 = 3,725.41/x
  3. Step 3: Cross multiply
    6,869.22x = 9,479.51 × 3,725.41
  4. Step 4: Simplify right side
    6,869.22x = 35,315,013.95
  5. Step 5: Solve for x
    x = 35,315,013.95/6,869.22
  6. Step 6: Final answer
    x = 5,141.05

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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.