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Finding the Fourth Proportional to 25.42, 35.13 and 23.26

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Solution

The fourth proportional to 25.42, 35.13 and 23.26 is: 32.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.42 : 35.13 = 23.26 : x
  2. Step 2: Convert to fraction form
    25.42/35.13 = 23.26/x
  3. Step 3: Cross multiply
    25.42x = 35.13 × 23.26
  4. Step 4: Simplify right side
    25.42x = 817.12
  5. Step 5: Solve for x
    x = 817.12/25.42
  6. Step 6: Final answer
    x = 32.14

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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.