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Finding the Fourth Proportional to 10.44, 14.38 and 9.36

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Solution

The fourth proportional to 10.44, 14.38 and 9.36 is: 12.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.44 : 14.38 = 9.36 : x
  2. Step 2: Convert to fraction form
    10.44/14.38 = 9.36/x
  3. Step 3: Cross multiply
    10.44x = 14.38 × 9.36
  4. Step 4: Simplify right side
    10.44x = 134.60
  5. Step 5: Solve for x
    x = 134.60/10.44
  6. Step 6: Final answer
    x = 12.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.