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Finding the Fourth Proportional to 4,750.85, 6,553.37 and 2,979.38

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Solution

The fourth proportional to 4,750.85, 6,553.37 and 2,979.38 is: 4,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.85 : 6,553.37 = 2,979.38 : x
  2. Step 2: Convert to fraction form
    4,750.85/6,553.37 = 2,979.38/x
  3. Step 3: Cross multiply
    4,750.85x = 6,553.37 × 2,979.38
  4. Step 4: Simplify right side
    4,750.85x = 19,525,003.34
  5. Step 5: Solve for x
    x = 19,525,003.34/4,750.85
  6. Step 6: Final answer
    x = 4,109.79

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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.