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Finding the Fourth Proportional to 4.37, 5.99 and 4.31

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Solution

The fourth proportional to 4.37, 5.99 and 4.31 is: 5.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.37 : 5.99 = 4.31 : x
  2. Step 2: Convert to fraction form
    4.37/5.99 = 4.31/x
  3. Step 3: Cross multiply
    4.37x = 5.99 × 4.31
  4. Step 4: Simplify right side
    4.37x = 25.82
  5. Step 5: Solve for x
    x = 25.82/4.37
  6. Step 6: Final answer
    x = 5.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.