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Finding the Third Proportional to 93.38 and 140.63

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Solution

The third proportional to 93.38 and 140.63 is: 211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.38 : 140.63 = 140.63 : x
  2. Step 2: Convert to fraction form
    93.38/140.63 = 140.63/x
  3. Step 3: Cross multiply
    93.38x = 140.63 × 140.63
  4. Step 4: Simplify right side
    93.38x = 19,775.39
  5. Step 5: Solve for x
    x = 19,775.39/93.38
  6. Step 6: Final answer
    x = 211.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.