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Finding the Fourth Proportional to 3,596, 5,393.76 and 998.96

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Solution

The fourth proportional to 3,596, 5,393.76 and 998.96 is: 1,498.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,596 : 5,393.76 = 998.96 : x
  2. Step 2: Convert to fraction form
    3,596/5,393.76 = 998.96/x
  3. Step 3: Cross multiply
    3,596x = 5,393.76 × 998.96
  4. Step 4: Simplify right side
    3,596x = 5,388,150.49
  5. Step 5: Solve for x
    x = 5,388,150.49/3,596
  6. Step 6: Final answer
    x = 1,498.37

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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.