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Finding the Fourth Proportional to 49.08, 73.64 and 48.27

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Solution

The fourth proportional to 49.08, 73.64 and 48.27 is: 72.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.08 : 73.64 = 48.27 : x
  2. Step 2: Convert to fraction form
    49.08/73.64 = 48.27/x
  3. Step 3: Cross multiply
    49.08x = 73.64 × 48.27
  4. Step 4: Simplify right side
    49.08x = 3,554.60
  5. Step 5: Solve for x
    x = 3,554.60/49.08
  6. Step 6: Final answer
    x = 72.42

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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.