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Finding the Fourth Proportional to 35.22, 48.39 and 33.63

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Solution

The fourth proportional to 35.22, 48.39 and 33.63 is: 46.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.22 : 48.39 = 33.63 : x
  2. Step 2: Convert to fraction form
    35.22/48.39 = 33.63/x
  3. Step 3: Cross multiply
    35.22x = 48.39 × 33.63
  4. Step 4: Simplify right side
    35.22x = 1,627.11
  5. Step 5: Solve for x
    x = 1,627.11/35.22
  6. Step 6: Final answer
    x = 46.21

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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.