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Finding the Fourth Proportional to 50.22, 75.24 and 48.87

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Solution

The fourth proportional to 50.22, 75.24 and 48.87 is: 73.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.22 : 75.24 = 48.87 : x
  2. Step 2: Convert to fraction form
    50.22/75.24 = 48.87/x
  3. Step 3: Cross multiply
    50.22x = 75.24 × 48.87
  4. Step 4: Simplify right side
    50.22x = 3,676.98
  5. Step 5: Solve for x
    x = 3,676.98/50.22
  6. Step 6: Final answer
    x = 73.22

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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.