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Finding the Fourth Proportional to 49.64, 74.43 and 32.54

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Solution

The fourth proportional to 49.64, 74.43 and 32.54 is: 48.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.64 : 74.43 = 32.54 : x
  2. Step 2: Convert to fraction form
    49.64/74.43 = 32.54/x
  3. Step 3: Cross multiply
    49.64x = 74.43 × 32.54
  4. Step 4: Simplify right side
    49.64x = 2,421.95
  5. Step 5: Solve for x
    x = 2,421.95/49.64
  6. Step 6: Final answer
    x = 48.79

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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.