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Finding the Fourth Proportional to 15.73, 23.60 and 14.14

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Solution

The fourth proportional to 15.73, 23.60 and 14.14 is: 21.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.73 : 23.60 = 14.14 : x
  2. Step 2: Convert to fraction form
    15.73/23.60 = 14.14/x
  3. Step 3: Cross multiply
    15.73x = 23.60 × 14.14
  4. Step 4: Simplify right side
    15.73x = 333.70
  5. Step 5: Solve for x
    x = 333.70/15.73
  6. Step 6: Final answer
    x = 21.21

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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.