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Finding the Fourth Proportional to 25.62, 37.92 and 25.56

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Solution

The fourth proportional to 25.62, 37.92 and 25.56 is: 37.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.62 : 37.92 = 25.56 : x
  2. Step 2: Convert to fraction form
    25.62/37.92 = 25.56/x
  3. Step 3: Cross multiply
    25.62x = 37.92 × 25.56
  4. Step 4: Simplify right side
    25.62x = 969.24
  5. Step 5: Solve for x
    x = 969.24/25.62
  6. Step 6: Final answer
    x = 37.83

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.