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Finding the Fourth Proportional to 54.48, 75.19 and 32.66

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Solution

The fourth proportional to 54.48, 75.19 and 32.66 is: 45.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54.48 : 75.19 = 32.66 : x
  2. Step 2: Convert to fraction form
    54.48/75.19 = 32.66/x
  3. Step 3: Cross multiply
    54.48x = 75.19 × 32.66
  4. Step 4: Simplify right side
    54.48x = 2,455.33
  5. Step 5: Solve for x
    x = 2,455.33/54.48
  6. Step 6: Final answer
    x = 45.07

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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.