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Finding the Fourth Proportional to 25.12, 37.44 and 23.92

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Solution

The fourth proportional to 25.12, 37.44 and 23.92 is: 35.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.12 : 37.44 = 23.92 : x
  2. Step 2: Convert to fraction form
    25.12/37.44 = 23.92/x
  3. Step 3: Cross multiply
    25.12x = 37.44 × 23.92
  4. Step 4: Simplify right side
    25.12x = 895.56
  5. Step 5: Solve for x
    x = 895.56/25.12
  6. Step 6: Final answer
    x = 35.65

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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.