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Finding the Fourth Proportional to 54.36, 74.99 and 44.01

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Solution

The fourth proportional to 54.36, 74.99 and 44.01 is: 60.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54.36 : 74.99 = 44.01 : x
  2. Step 2: Convert to fraction form
    54.36/74.99 = 44.01/x
  3. Step 3: Cross multiply
    54.36x = 74.99 × 44.01
  4. Step 4: Simplify right side
    54.36x = 3,299.90
  5. Step 5: Solve for x
    x = 3,299.90/54.36
  6. Step 6: Final answer
    x = 60.71

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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.