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Finding the Fourth Proportional to 93.71, 140.55 and 25.24

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Solution

The fourth proportional to 93.71, 140.55 and 25.24 is: 37.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.71 : 140.55 = 25.24 : x
  2. Step 2: Convert to fraction form
    93.71/140.55 = 25.24/x
  3. Step 3: Cross multiply
    93.71x = 140.55 × 25.24
  4. Step 4: Simplify right side
    93.71x = 3,546.81
  5. Step 5: Solve for x
    x = 3,546.81/93.71
  6. Step 6: Final answer
    x = 37.85

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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.