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Finding the Fourth Proportional to 42.84, 59.12 and 33.52

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Solution

The fourth proportional to 42.84, 59.12 and 33.52 is: 46.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42.84 : 59.12 = 33.52 : x
  2. Step 2: Convert to fraction form
    42.84/59.12 = 33.52/x
  3. Step 3: Cross multiply
    42.84x = 59.12 × 33.52
  4. Step 4: Simplify right side
    42.84x = 1,981.70
  5. Step 5: Solve for x
    x = 1,981.70/42.84
  6. Step 6: Final answer
    x = 46.26

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