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Finding the Fourth Proportional to 24.50, 36.79 and 15.53

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Solution

The fourth proportional to 24.50, 36.79 and 15.53 is: 23.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.50 : 36.79 = 15.53 : x
  2. Step 2: Convert to fraction form
    24.50/36.79 = 15.53/x
  3. Step 3: Cross multiply
    24.50x = 36.79 × 15.53
  4. Step 4: Simplify right side
    24.50x = 571.13
  5. Step 5: Solve for x
    x = 571.13/24.50
  6. Step 6: Final answer
    x = 23.31

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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.