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Finding the Fourth Proportional to 17.39, 26.03 and 11.65

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Solution

The fourth proportional to 17.39, 26.03 and 11.65 is: 17.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.39 : 26.03 = 11.65 : x
  2. Step 2: Convert to fraction form
    17.39/26.03 = 11.65/x
  3. Step 3: Cross multiply
    17.39x = 26.03 × 11.65
  4. Step 4: Simplify right side
    17.39x = 303.06
  5. Step 5: Solve for x
    x = 303.06/17.39
  6. Step 6: Final answer
    x = 17.43

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.