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Finding the Fourth Proportional to 50.64, 75.96 and 24.60

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Solution

The fourth proportional to 50.64, 75.96 and 24.60 is: 36.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.64 : 75.96 = 24.60 : x
  2. Step 2: Convert to fraction form
    50.64/75.96 = 24.60/x
  3. Step 3: Cross multiply
    50.64x = 75.96 × 24.60
  4. Step 4: Simplify right side
    50.64x = 1,868.24
  5. Step 5: Solve for x
    x = 1,868.24/50.64
  6. Step 6: Final answer
    x = 36.90

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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.