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Finding the Fourth Proportional to 13.96, 19.24 and 9.58

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Solution

The fourth proportional to 13.96, 19.24 and 9.58 is: 13.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13.96 : 19.24 = 9.58 : x
  2. Step 2: Convert to fraction form
    13.96/19.24 = 9.58/x
  3. Step 3: Cross multiply
    13.96x = 19.24 × 9.58
  4. Step 4: Simplify right side
    13.96x = 184.32
  5. Step 5: Solve for x
    x = 184.32/13.96
  6. Step 6: Final answer
    x = 13.20

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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.