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Finding the Fourth Proportional to 26.23, 39.33 and 14.79

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Solution

The fourth proportional to 26.23, 39.33 and 14.79 is: 22.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.23 : 39.33 = 14.79 : x
  2. Step 2: Convert to fraction form
    26.23/39.33 = 14.79/x
  3. Step 3: Cross multiply
    26.23x = 39.33 × 14.79
  4. Step 4: Simplify right side
    26.23x = 581.62
  5. Step 5: Solve for x
    x = 581.62/26.23
  6. Step 6: Final answer
    x = 22.17

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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.