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Finding the Fourth Proportional to 24.99, 34.50 and 22.68

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Solution

The fourth proportional to 24.99, 34.50 and 22.68 is: 31.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.99 : 34.50 = 22.68 : x
  2. Step 2: Convert to fraction form
    24.99/34.50 = 22.68/x
  3. Step 3: Cross multiply
    24.99x = 34.50 × 22.68
  4. Step 4: Simplify right side
    24.99x = 782.46
  5. Step 5: Solve for x
    x = 782.46/24.99
  6. Step 6: Final answer
    x = 31.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.