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Finding the Fourth Proportional to 22.88, 34.14 and 22.70

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Solution

The fourth proportional to 22.88, 34.14 and 22.70 is: 33.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.88 : 34.14 = 22.70 : x
  2. Step 2: Convert to fraction form
    22.88/34.14 = 22.70/x
  3. Step 3: Cross multiply
    22.88x = 34.14 × 22.70
  4. Step 4: Simplify right side
    22.88x = 774.81
  5. Step 5: Solve for x
    x = 774.81/22.88
  6. Step 6: Final answer
    x = 33.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.