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Finding the Fourth Proportional to 25.46, 38.37 and 24.21

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Solution

The fourth proportional to 25.46, 38.37 and 24.21 is: 36.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.46 : 38.37 = 24.21 : x
  2. Step 2: Convert to fraction form
    25.46/38.37 = 24.21/x
  3. Step 3: Cross multiply
    25.46x = 38.37 × 24.21
  4. Step 4: Simplify right side
    25.46x = 928.94
  5. Step 5: Solve for x
    x = 928.94/25.46
  6. Step 6: Final answer
    x = 36.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.