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Finding the Fourth Proportional to 25.44, 35.16 and 23.04

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Solution

The fourth proportional to 25.44, 35.16 and 23.04 is: 31.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.44 : 35.16 = 23.04 : x
  2. Step 2: Convert to fraction form
    25.44/35.16 = 23.04/x
  3. Step 3: Cross multiply
    25.44x = 35.16 × 23.04
  4. Step 4: Simplify right side
    25.44x = 810.09
  5. Step 5: Solve for x
    x = 810.09/25.44
  6. Step 6: Final answer
    x = 31.84

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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.