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Finding the Fourth Proportional to 49.68, 74.52 and 29.34

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Solution

The fourth proportional to 49.68, 74.52 and 29.34 is: 44.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.68 : 74.52 = 29.34 : x
  2. Step 2: Convert to fraction form
    49.68/74.52 = 29.34/x
  3. Step 3: Cross multiply
    49.68x = 74.52 × 29.34
  4. Step 4: Simplify right side
    49.68x = 2,186.42
  5. Step 5: Solve for x
    x = 2,186.42/49.68
  6. Step 6: Final answer
    x = 44.01

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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.