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Finding the Fourth Proportional to 23.12, 34.64 and 9.58

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Solution

The fourth proportional to 23.12, 34.64 and 9.58 is: 14.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.12 : 34.64 = 9.58 : x
  2. Step 2: Convert to fraction form
    23.12/34.64 = 9.58/x
  3. Step 3: Cross multiply
    23.12x = 34.64 × 9.58
  4. Step 4: Simplify right side
    23.12x = 331.85
  5. Step 5: Solve for x
    x = 331.85/23.12
  6. Step 6: Final answer
    x = 14.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.