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Finding the Fourth Proportional to 35.28, 52.56 and 33.98

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Solution

The fourth proportional to 35.28, 52.56 and 33.98 is: 50.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.28 : 52.56 = 33.98 : x
  2. Step 2: Convert to fraction form
    35.28/52.56 = 33.98/x
  3. Step 3: Cross multiply
    35.28x = 52.56 × 33.98
  4. Step 4: Simplify right side
    35.28x = 1,785.99
  5. Step 5: Solve for x
    x = 1,785.99/35.28
  6. Step 6: Final answer
    x = 50.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.