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Finding the Fourth Proportional to 22.98, 34.45 and 14.86

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Solution

The fourth proportional to 22.98, 34.45 and 14.86 is: 22.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.98 : 34.45 = 14.86 : x
  2. Step 2: Convert to fraction form
    22.98/34.45 = 14.86/x
  3. Step 3: Cross multiply
    22.98x = 34.45 × 14.86
  4. Step 4: Simplify right side
    22.98x = 511.80
  5. Step 5: Solve for x
    x = 511.80/22.98
  6. Step 6: Final answer
    x = 22.27

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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.