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Finding the Fourth Proportional to 15.25, 22.97 and 14.69

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Solution

The fourth proportional to 15.25, 22.97 and 14.69 is: 22.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.25 : 22.97 = 14.69 : x
  2. Step 2: Convert to fraction form
    15.25/22.97 = 14.69/x
  3. Step 3: Cross multiply
    15.25x = 22.97 × 14.69
  4. Step 4: Simplify right side
    15.25x = 337.41
  5. Step 5: Solve for x
    x = 337.41/15.25
  6. Step 6: Final answer
    x = 22.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.