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Finding the Fourth Proportional to 6,285.33, 8,676.90 and 4,865.85

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Solution

The fourth proportional to 6,285.33, 8,676.90 and 4,865.85 is: 6,717.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,285.33 : 8,676.90 = 4,865.85 : x
  2. Step 2: Convert to fraction form
    6,285.33/8,676.90 = 4,865.85/x
  3. Step 3: Cross multiply
    6,285.33x = 8,676.90 × 4,865.85
  4. Step 4: Simplify right side
    6,285.33x = 42,220,493.87
  5. Step 5: Solve for x
    x = 42,220,493.87/6,285.33
  6. Step 6: Final answer
    x = 6,717.31

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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.