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Finding the Third Proportional to 42 and 93.63

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Solution

The third proportional to 42 and 93.63 is: 208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42 : 93.63 = 93.63 : x
  2. Step 2: Convert to fraction form
    42/93.63 = 93.63/x
  3. Step 3: Cross multiply
    42x = 93.63 × 93.63
  4. Step 4: Simplify right side
    42x = 8,765.64
  5. Step 5: Solve for x
    x = 8,765.64/42
  6. Step 6: Final answer
    x = 208.71

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.