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Finding the Fourth Proportional to 49.46, 74.16 and 23.76

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Solution

The fourth proportional to 49.46, 74.16 and 23.76 is: 35.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.46 : 74.16 = 23.76 : x
  2. Step 2: Convert to fraction form
    49.46/74.16 = 23.76/x
  3. Step 3: Cross multiply
    49.46x = 74.16 × 23.76
  4. Step 4: Simplify right side
    49.46x = 1,762.04
  5. Step 5: Solve for x
    x = 1,762.04/49.46
  6. Step 6: Final answer
    x = 35.63

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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.