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Finding the Fourth Proportional to 70.73, 97.62 and 46.18

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Solution

The fourth proportional to 70.73, 97.62 and 46.18 is: 63.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.73 : 97.62 = 46.18 : x
  2. Step 2: Convert to fraction form
    70.73/97.62 = 46.18/x
  3. Step 3: Cross multiply
    70.73x = 97.62 × 46.18
  4. Step 4: Simplify right side
    70.73x = 4,507.85
  5. Step 5: Solve for x
    x = 4,507.85/70.73
  6. Step 6: Final answer
    x = 63.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.