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Finding the Fourth Proportional to 2,383.66, 3,572.94 and 996.64

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Solution

The fourth proportional to 2,383.66, 3,572.94 and 996.64 is: 1,493.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.66 : 3,572.94 = 996.64 : x
  2. Step 2: Convert to fraction form
    2,383.66/3,572.94 = 996.64/x
  3. Step 3: Cross multiply
    2,383.66x = 3,572.94 × 996.64
  4. Step 4: Simplify right side
    2,383.66x = 3,560,934.92
  5. Step 5: Solve for x
    x = 3,560,934.92/2,383.66
  6. Step 6: Final answer
    x = 1,493.89

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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.