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Finding the Fourth Proportional to 6.31, 9.46 and 2.93

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Solution

The fourth proportional to 6.31, 9.46 and 2.93 is: 4.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.31 : 9.46 = 2.93 : x
  2. Step 2: Convert to fraction form
    6.31/9.46 = 2.93/x
  3. Step 3: Cross multiply
    6.31x = 9.46 × 2.93
  4. Step 4: Simplify right side
    6.31x = 27.72
  5. Step 5: Solve for x
    x = 27.72/6.31
  6. Step 6: Final answer
    x = 4.39

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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.