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Finding the Fourth Proportional to 49.50, 68.27 and 32.92

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Solution

The fourth proportional to 49.50, 68.27 and 32.92 is: 45.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.50 : 68.27 = 32.92 : x
  2. Step 2: Convert to fraction form
    49.50/68.27 = 32.92/x
  3. Step 3: Cross multiply
    49.50x = 68.27 × 32.92
  4. Step 4: Simplify right side
    49.50x = 2,247.11
  5. Step 5: Solve for x
    x = 2,247.11/49.50
  6. Step 6: Final answer
    x = 45.40

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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.