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Finding the Fourth Proportional to 3,542.52, 5,313.96 and 945.48

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Solution

The fourth proportional to 3,542.52, 5,313.96 and 945.48 is: 1,418.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.52 : 5,313.96 = 945.48 : x
  2. Step 2: Convert to fraction form
    3,542.52/5,313.96 = 945.48/x
  3. Step 3: Cross multiply
    3,542.52x = 5,313.96 × 945.48
  4. Step 4: Simplify right side
    3,542.52x = 5,024,242.90
  5. Step 5: Solve for x
    x = 5,024,242.90/3,542.52
  6. Step 6: Final answer
    x = 1,418.27

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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.