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Finding the Fourth Proportional to 68.20, 94.02 and 46.32

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Solution

The fourth proportional to 68.20, 94.02 and 46.32 is: 63.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.20 : 94.02 = 46.32 : x
  2. Step 2: Convert to fraction form
    68.20/94.02 = 46.32/x
  3. Step 3: Cross multiply
    68.20x = 94.02 × 46.32
  4. Step 4: Simplify right side
    68.20x = 4,355.01
  5. Step 5: Solve for x
    x = 4,355.01/68.20
  6. Step 6: Final answer
    x = 63.86

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