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Finding the Fourth Proportional to 28.36, 39.16 and 24.08

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Solution

The fourth proportional to 28.36, 39.16 and 24.08 is: 33.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.36 : 39.16 = 24.08 : x
  2. Step 2: Convert to fraction form
    28.36/39.16 = 24.08/x
  3. Step 3: Cross multiply
    28.36x = 39.16 × 24.08
  4. Step 4: Simplify right side
    28.36x = 942.97
  5. Step 5: Solve for x
    x = 942.97/28.36
  6. Step 6: Final answer
    x = 33.25

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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.