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Finding the Fourth Proportional to 33.45, 46.15 and 19.63

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Solution

The fourth proportional to 33.45, 46.15 and 19.63 is: 27.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.45 : 46.15 = 19.63 : x
  2. Step 2: Convert to fraction form
    33.45/46.15 = 19.63/x
  3. Step 3: Cross multiply
    33.45x = 46.15 × 19.63
  4. Step 4: Simplify right side
    33.45x = 905.71
  5. Step 5: Solve for x
    x = 905.71/33.45
  6. Step 6: Final answer
    x = 27.08

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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.