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Finding the Fourth Proportional to 23.32, 32.16 and 18.46

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Solution

The fourth proportional to 23.32, 32.16 and 18.46 is: 25.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.32 : 32.16 = 18.46 : x
  2. Step 2: Convert to fraction form
    23.32/32.16 = 18.46/x
  3. Step 3: Cross multiply
    23.32x = 32.16 × 18.46
  4. Step 4: Simplify right side
    23.32x = 593.67
  5. Step 5: Solve for x
    x = 593.67/23.32
  6. Step 6: Final answer
    x = 25.46

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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.