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Finding the Fourth Proportional to 16.72, 23.07 and 10.25

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Solution

The fourth proportional to 16.72, 23.07 and 10.25 is: 14.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.72 : 23.07 = 10.25 : x
  2. Step 2: Convert to fraction form
    16.72/23.07 = 10.25/x
  3. Step 3: Cross multiply
    16.72x = 23.07 × 10.25
  4. Step 4: Simplify right side
    16.72x = 236.47
  5. Step 5: Solve for x
    x = 236.47/16.72
  6. Step 6: Final answer
    x = 14.14

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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.