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Finding the Fourth Proportional to 24.17, 33.35 and 19.31

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Solution

The fourth proportional to 24.17, 33.35 and 19.31 is: 26.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.17 : 33.35 = 19.31 : x
  2. Step 2: Convert to fraction form
    24.17/33.35 = 19.31/x
  3. Step 3: Cross multiply
    24.17x = 33.35 × 19.31
  4. Step 4: Simplify right side
    24.17x = 643.73
  5. Step 5: Solve for x
    x = 643.73/24.17
  6. Step 6: Final answer
    x = 26.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.