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Finding the Fourth Proportional to 10.44, 15.60 and 9.43

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Solution

The fourth proportional to 10.44, 15.60 and 9.43 is: 14.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.44 : 15.60 = 9.43 : x
  2. Step 2: Convert to fraction form
    10.44/15.60 = 9.43/x
  3. Step 3: Cross multiply
    10.44x = 15.60 × 9.43
  4. Step 4: Simplify right side
    10.44x = 147.11
  5. Step 5: Solve for x
    x = 147.11/10.44
  6. Step 6: Final answer
    x = 14.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.