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Finding the Fourth Proportional to 9.79, 14.67 and 4.44

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Solution

The fourth proportional to 9.79, 14.67 and 4.44 is: 6.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.79 : 14.67 = 4.44 : x
  2. Step 2: Convert to fraction form
    9.79/14.67 = 4.44/x
  3. Step 3: Cross multiply
    9.79x = 14.67 × 4.44
  4. Step 4: Simplify right side
    9.79x = 65.13
  5. Step 5: Solve for x
    x = 65.13/9.79
  6. Step 6: Final answer
    x = 6.65

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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.