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Finding the Fourth Proportional to 3,593.16, 5,389.70 and 996

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Solution

The fourth proportional to 3,593.16, 5,389.70 and 996 is: 1,493.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.16 : 5,389.70 = 996 : x
  2. Step 2: Convert to fraction form
    3,593.16/5,389.70 = 996/x
  3. Step 3: Cross multiply
    3,593.16x = 5,389.70 × 996
  4. Step 4: Simplify right side
    3,593.16x = 5,368,141.20
  5. Step 5: Solve for x
    x = 5,368,141.20/3,593.16
  6. Step 6: Final answer
    x = 1,493.99

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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.