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Finding the Fourth Proportional to 3,542.72, 5,313.92 and 1,352.48

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Solution

The fourth proportional to 3,542.72, 5,313.92 and 1,352.48 is: 2,028.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.72 : 5,313.92 = 1,352.48 : x
  2. Step 2: Convert to fraction form
    3,542.72/5,313.92 = 1,352.48/x
  3. Step 3: Cross multiply
    3,542.72x = 5,313.92 × 1,352.48
  4. Step 4: Simplify right side
    3,542.72x = 7,186,970.52
  5. Step 5: Solve for x
    x = 7,186,970.52/3,542.72
  6. Step 6: Final answer
    x = 2,028.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.