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Finding the Fourth Proportional to 93.54, 140.31 and 32.64

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Solution

The fourth proportional to 93.54, 140.31 and 32.64 is: 48.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.54 : 140.31 = 32.64 : x
  2. Step 2: Convert to fraction form
    93.54/140.31 = 32.64/x
  3. Step 3: Cross multiply
    93.54x = 140.31 × 32.64
  4. Step 4: Simplify right side
    93.54x = 4,579.72
  5. Step 5: Solve for x
    x = 4,579.72/93.54
  6. Step 6: Final answer
    x = 48.96

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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.