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Finding the Fourth Proportional to 6,287.33, 8,676.66 and 3,454.88

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Solution

The fourth proportional to 6,287.33, 8,676.66 and 3,454.88 is: 4,767.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.33 : 8,676.66 = 3,454.88 : x
  2. Step 2: Convert to fraction form
    6,287.33/8,676.66 = 3,454.88/x
  3. Step 3: Cross multiply
    6,287.33x = 8,676.66 × 3,454.88
  4. Step 4: Simplify right side
    6,287.33x = 29,976,819.10
  5. Step 5: Solve for x
    x = 29,976,819.10/6,287.33
  6. Step 6: Final answer
    x = 4,767.81

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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.