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Finding the Fourth Proportional to 5,383.91, 7,425.17 and 3,493.63

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Solution

The fourth proportional to 5,383.91, 7,425.17 and 3,493.63 is: 4,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.91 : 7,425.17 = 3,493.63 : x
  2. Step 2: Convert to fraction form
    5,383.91/7,425.17 = 3,493.63/x
  3. Step 3: Cross multiply
    5,383.91x = 7,425.17 × 3,493.63
  4. Step 4: Simplify right side
    5,383.91x = 25,940,796.67
  5. Step 5: Solve for x
    x = 25,940,796.67/5,383.91
  6. Step 6: Final answer
    x = 4,818.21

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1.5x scale

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.