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Finding the Fourth Proportional to 25.01, 34.45 and 23.79

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Solution

The fourth proportional to 25.01, 34.45 and 23.79 is: 32.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.01 : 34.45 = 23.79 : x
  2. Step 2: Convert to fraction form
    25.01/34.45 = 23.79/x
  3. Step 3: Cross multiply
    25.01x = 34.45 × 23.79
  4. Step 4: Simplify right side
    25.01x = 819.57
  5. Step 5: Solve for x
    x = 819.57/25.01
  6. Step 6: Final answer
    x = 32.77

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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.