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Finding the Fourth Proportional to 10.48, 14.45 and 8.44

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Solution

The fourth proportional to 10.48, 14.45 and 8.44 is: 11.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.48 : 14.45 = 8.44 : x
  2. Step 2: Convert to fraction form
    10.48/14.45 = 8.44/x
  3. Step 3: Cross multiply
    10.48x = 14.45 × 8.44
  4. Step 4: Simplify right side
    10.48x = 121.96
  5. Step 5: Solve for x
    x = 121.96/10.48
  6. Step 6: Final answer
    x = 11.64

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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.