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Finding the Fourth Proportional to 35.90, 49.52 and 22.07

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Solution

The fourth proportional to 35.90, 49.52 and 22.07 is: 30.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.90 : 49.52 = 22.07 : x
  2. Step 2: Convert to fraction form
    35.90/49.52 = 22.07/x
  3. Step 3: Cross multiply
    35.90x = 49.52 × 22.07
  4. Step 4: Simplify right side
    35.90x = 1,092.55
  5. Step 5: Solve for x
    x = 1,092.55/35.90
  6. Step 6: Final answer
    x = 30.44

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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.