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Finding the Fourth Proportional to 25.83, 38.75 and 22.48

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Solution

The fourth proportional to 25.83, 38.75 and 22.48 is: 33.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.83 : 38.75 = 22.48 : x
  2. Step 2: Convert to fraction form
    25.83/38.75 = 22.48/x
  3. Step 3: Cross multiply
    25.83x = 38.75 × 22.48
  4. Step 4: Simplify right side
    25.83x = 871.10
  5. Step 5: Solve for x
    x = 871.10/25.83
  6. Step 6: Final answer
    x = 33.72

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Why These Related Problems?

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