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Finding the Fourth Proportional to 16.56, 24.72 and 16.02

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Solution

The fourth proportional to 16.56, 24.72 and 16.02 is: 23.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.56 : 24.72 = 16.02 : x
  2. Step 2: Convert to fraction form
    16.56/24.72 = 16.02/x
  3. Step 3: Cross multiply
    16.56x = 24.72 × 16.02
  4. Step 4: Simplify right side
    16.56x = 396.01
  5. Step 5: Solve for x
    x = 396.01/16.56
  6. Step 6: Final answer
    x = 23.91

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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.