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Finding the Fourth Proportional to 25.85, 35.73 and 22.03

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Solution

The fourth proportional to 25.85, 35.73 and 22.03 is: 30.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.85 : 35.73 = 22.03 : x
  2. Step 2: Convert to fraction form
    25.85/35.73 = 22.03/x
  3. Step 3: Cross multiply
    25.85x = 35.73 × 22.03
  4. Step 4: Simplify right side
    25.85x = 787.04
  5. Step 5: Solve for x
    x = 787.04/25.85
  6. Step 6: Final answer
    x = 30.44

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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.