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Finding the Fourth Proportional to 17.60, 24.15 and 16.58

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Solution

The fourth proportional to 17.60, 24.15 and 16.58 is: 22.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.60 : 24.15 = 16.58 : x
  2. Step 2: Convert to fraction form
    17.60/24.15 = 16.58/x
  3. Step 3: Cross multiply
    17.60x = 24.15 × 16.58
  4. Step 4: Simplify right side
    17.60x = 400.29
  5. Step 5: Solve for x
    x = 400.29/17.60
  6. Step 6: Final answer
    x = 22.75

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.