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Finding the Fourth Proportional to 46.92, 70.44 and 36.12

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Solution

The fourth proportional to 46.92, 70.44 and 36.12 is: 54.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.92 : 70.44 = 36.12 : x
  2. Step 2: Convert to fraction form
    46.92/70.44 = 36.12/x
  3. Step 3: Cross multiply
    46.92x = 70.44 × 36.12
  4. Step 4: Simplify right side
    46.92x = 2,544.29
  5. Step 5: Solve for x
    x = 2,544.29/46.92
  6. Step 6: Final answer
    x = 54.23

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Why These Related Problems?

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