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Finding the Fourth Proportional to 49.54, 74.68 and 46.24

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Solution

The fourth proportional to 49.54, 74.68 and 46.24 is: 69.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.54 : 74.68 = 46.24 : x
  2. Step 2: Convert to fraction form
    49.54/74.68 = 46.24/x
  3. Step 3: Cross multiply
    49.54x = 74.68 × 46.24
  4. Step 4: Simplify right side
    49.54x = 3,452.71
  5. Step 5: Solve for x
    x = 3,452.71/49.54
  6. Step 6: Final answer
    x = 69.70

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.