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Finding the Fourth Proportional to 49.44, 73.62 and 46.48

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Solution

The fourth proportional to 49.44, 73.62 and 46.48 is: 69.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.44 : 73.62 = 46.48 : x
  2. Step 2: Convert to fraction form
    49.44/73.62 = 46.48/x
  3. Step 3: Cross multiply
    49.44x = 73.62 × 46.48
  4. Step 4: Simplify right side
    49.44x = 3,421.86
  5. Step 5: Solve for x
    x = 3,421.86/49.44
  6. Step 6: Final answer
    x = 69.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.