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Finding the Fourth Proportional to 23.18, 32 and 15.41

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Solution

The fourth proportional to 23.18, 32 and 15.41 is: 21.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.18 : 32 = 15.41 : x
  2. Step 2: Convert to fraction form
    23.18/32 = 15.41/x
  3. Step 3: Cross multiply
    23.18x = 32 × 15.41
  4. Step 4: Simplify right side
    23.18x = 493.12
  5. Step 5: Solve for x
    x = 493.12/23.18
  6. Step 6: Final answer
    x = 21.27

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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.