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Finding the Fourth Proportional to 19.35, 26.51 and 17.96

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Solution

The fourth proportional to 19.35, 26.51 and 17.96 is: 24.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.35 : 26.51 = 17.96 : x
  2. Step 2: Convert to fraction form
    19.35/26.51 = 17.96/x
  3. Step 3: Cross multiply
    19.35x = 26.51 × 17.96
  4. Step 4: Simplify right side
    19.35x = 475.90
  5. Step 5: Solve for x
    x = 475.90/19.35
  6. Step 6: Final answer
    x = 24.59

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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.