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Finding the Fourth Proportional to 55.06, 75.98 and 33.24

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Solution

The fourth proportional to 55.06, 75.98 and 33.24 is: 45.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.06 : 75.98 = 33.24 : x
  2. Step 2: Convert to fraction form
    55.06/75.98 = 33.24/x
  3. Step 3: Cross multiply
    55.06x = 75.98 × 33.24
  4. Step 4: Simplify right side
    55.06x = 2,525.58
  5. Step 5: Solve for x
    x = 2,525.58/55.06
  6. Step 6: Final answer
    x = 45.87

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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.