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Finding the Fourth Proportional to 25.13, 34.66 and 17.64

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Solution

The fourth proportional to 25.13, 34.66 and 17.64 is: 24.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.13 : 34.66 = 17.64 : x
  2. Step 2: Convert to fraction form
    25.13/34.66 = 17.64/x
  3. Step 3: Cross multiply
    25.13x = 34.66 × 17.64
  4. Step 4: Simplify right side
    25.13x = 611.36
  5. Step 5: Solve for x
    x = 611.36/25.13
  6. Step 6: Final answer
    x = 24.33

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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.