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Finding the Fourth Proportional to 11.36, 17.03 and 5.64

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Solution

The fourth proportional to 11.36, 17.03 and 5.64 is: 8.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.36 : 17.03 = 5.64 : x
  2. Step 2: Convert to fraction form
    11.36/17.03 = 5.64/x
  3. Step 3: Cross multiply
    11.36x = 17.03 × 5.64
  4. Step 4: Simplify right side
    11.36x = 96.05
  5. Step 5: Solve for x
    x = 96.05/11.36
  6. Step 6: Final answer
    x = 8.46

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Why These Related Problems?

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