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Finding the Fourth Proportional to 38.32, 57.44 and 14.25

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Solution

The fourth proportional to 38.32, 57.44 and 14.25 is: 21.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.32 : 57.44 = 14.25 : x
  2. Step 2: Convert to fraction form
    38.32/57.44 = 14.25/x
  3. Step 3: Cross multiply
    38.32x = 57.44 × 14.25
  4. Step 4: Simplify right side
    38.32x = 818.45
  5. Step 5: Solve for x
    x = 818.45/38.32
  6. Step 6: Final answer
    x = 21.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.