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Finding the Fourth Proportional to 70.46, 105.58 and 34.41

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Solution

The fourth proportional to 70.46, 105.58 and 34.41 is: 51.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.46 : 105.58 = 34.41 : x
  2. Step 2: Convert to fraction form
    70.46/105.58 = 34.41/x
  3. Step 3: Cross multiply
    70.46x = 105.58 × 34.41
  4. Step 4: Simplify right side
    70.46x = 3,633.01
  5. Step 5: Solve for x
    x = 3,633.01/70.46
  6. Step 6: Final answer
    x = 51.56

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.