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Finding the Fourth Proportional to 28.25, 42.42 and 24.00

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Solution

The fourth proportional to 28.25, 42.42 and 24.00 is: 36.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.25 : 42.42 = 24.00 : x
  2. Step 2: Convert to fraction form
    28.25/42.42 = 24.00/x
  3. Step 3: Cross multiply
    28.25x = 42.42 × 24.00
  4. Step 4: Simplify right side
    28.25x = 1,018.01
  5. Step 5: Solve for x
    x = 1,018.01/28.25
  6. Step 6: Final answer
    x = 36.04

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