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Finding the Fourth Proportional to 3,717.72, 5,542.37 and 3,542.76

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Solution

The fourth proportional to 3,717.72, 5,542.37 and 3,542.76 is: 5,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.72 : 5,542.37 = 3,542.76 : x
  2. Step 2: Convert to fraction form
    3,717.72/5,542.37 = 3,542.76/x
  3. Step 3: Cross multiply
    3,717.72x = 5,542.37 × 3,542.76
  4. Step 4: Simplify right side
    3,717.72x = 19,635,286.74
  5. Step 5: Solve for x
    x = 19,635,286.74/3,717.72
  6. Step 6: Final answer
    x = 5,281.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.