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Finding the Fourth Proportional to 50.76, 75.24 and 50.04

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Solution

The fourth proportional to 50.76, 75.24 and 50.04 is: 74.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.76 : 75.24 = 50.04 : x
  2. Step 2: Convert to fraction form
    50.76/75.24 = 50.04/x
  3. Step 3: Cross multiply
    50.76x = 75.24 × 50.04
  4. Step 4: Simplify right side
    50.76x = 3,765.01
  5. Step 5: Solve for x
    x = 3,765.01/50.76
  6. Step 6: Final answer
    x = 74.17

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.