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Finding the Fourth Proportional to 16.72, 25.06 and 9.48

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Solution

The fourth proportional to 16.72, 25.06 and 9.48 is: 14.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.72 : 25.06 = 9.48 : x
  2. Step 2: Convert to fraction form
    16.72/25.06 = 9.48/x
  3. Step 3: Cross multiply
    16.72x = 25.06 × 9.48
  4. Step 4: Simplify right side
    16.72x = 237.57
  5. Step 5: Solve for x
    x = 237.57/16.72
  6. Step 6: Final answer
    x = 14.21

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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.