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Finding the Fourth Proportional to 4,930.57, 6,803.92 and 2,887.09

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Solution

The fourth proportional to 4,930.57, 6,803.92 and 2,887.09 is: 3,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.57 : 6,803.92 = 2,887.09 : x
  2. Step 2: Convert to fraction form
    4,930.57/6,803.92 = 2,887.09/x
  3. Step 3: Cross multiply
    4,930.57x = 6,803.92 × 2,887.09
  4. Step 4: Simplify right side
    4,930.57x = 19,643,562.38
  5. Step 5: Solve for x
    x = 19,643,562.38/4,930.57
  6. Step 6: Final answer
    x = 3,984.03

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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.