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Finding the Fourth Proportional to 25.95, 35.81 and 16.24

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Solution

The fourth proportional to 25.95, 35.81 and 16.24 is: 22.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.95 : 35.81 = 16.24 : x
  2. Step 2: Convert to fraction form
    25.95/35.81 = 16.24/x
  3. Step 3: Cross multiply
    25.95x = 35.81 × 16.24
  4. Step 4: Simplify right side
    25.95x = 581.55
  5. Step 5: Solve for x
    x = 581.55/25.95
  6. Step 6: Final answer
    x = 22.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.