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Finding the Fourth Proportional to 6,267.96, 8,640.54 and 4,939.02

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Solution

The fourth proportional to 6,267.96, 8,640.54 and 4,939.02 is: 6,808.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,267.96 : 8,640.54 = 4,939.02 : x
  2. Step 2: Convert to fraction form
    6,267.96/8,640.54 = 4,939.02/x
  3. Step 3: Cross multiply
    6,267.96x = 8,640.54 × 4,939.02
  4. Step 4: Simplify right side
    6,267.96x = 42,675,799.87
  5. Step 5: Solve for x
    x = 42,675,799.87/6,267.96
  6. Step 6: Final answer
    x = 6,808.56

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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.