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Finding the Fourth Proportional to 32.56, 48.76 and 22.96

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Solution

The fourth proportional to 32.56, 48.76 and 22.96 is: 34.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.56 : 48.76 = 22.96 : x
  2. Step 2: Convert to fraction form
    32.56/48.76 = 22.96/x
  3. Step 3: Cross multiply
    32.56x = 48.76 × 22.96
  4. Step 4: Simplify right side
    32.56x = 1,119.53
  5. Step 5: Solve for x
    x = 1,119.53/32.56
  6. Step 6: Final answer
    x = 34.38

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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.