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Finding the Fourth Proportional to 16.70, 25.02 and 16.52

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Solution

The fourth proportional to 16.70, 25.02 and 16.52 is: 24.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.70 : 25.02 = 16.52 : x
  2. Step 2: Convert to fraction form
    16.70/25.02 = 16.52/x
  3. Step 3: Cross multiply
    16.70x = 25.02 × 16.52
  4. Step 4: Simplify right side
    16.70x = 413.21
  5. Step 5: Solve for x
    x = 413.21/16.70
  6. Step 6: Final answer
    x = 24.75

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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.