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Finding the Fourth Proportional to 35.98, 54 and 17.96

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Solution

The fourth proportional to 35.98, 54 and 17.96 is: 26.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.98 : 54 = 17.96 : x
  2. Step 2: Convert to fraction form
    35.98/54 = 17.96/x
  3. Step 3: Cross multiply
    35.98x = 54 × 17.96
  4. Step 4: Simplify right side
    35.98x = 969.57
  5. Step 5: Solve for x
    x = 969.57/35.98
  6. Step 6: Final answer
    x = 26.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.