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Finding the Fourth Proportional to 33.53, 46.28 and 22.45

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Solution

The fourth proportional to 33.53, 46.28 and 22.45 is: 30.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.53 : 46.28 = 22.45 : x
  2. Step 2: Convert to fraction form
    33.53/46.28 = 22.45/x
  3. Step 3: Cross multiply
    33.53x = 46.28 × 22.45
  4. Step 4: Simplify right side
    33.53x = 1,038.99
  5. Step 5: Solve for x
    x = 1,038.99/33.53
  6. Step 6: Final answer
    x = 30.99

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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.