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Finding the Fourth Proportional to 16.60, 24.90 and 7.59

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Solution

The fourth proportional to 16.60, 24.90 and 7.59 is: 11.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.60 : 24.90 = 7.59 : x
  2. Step 2: Convert to fraction form
    16.60/24.90 = 7.59/x
  3. Step 3: Cross multiply
    16.60x = 24.90 × 7.59
  4. Step 4: Simplify right side
    16.60x = 188.87
  5. Step 5: Solve for x
    x = 188.87/16.60
  6. Step 6: Final answer
    x = 11.38

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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.