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Finding the Fourth Proportional to 11.64, 15.93 and 11.59

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Solution

The fourth proportional to 11.64, 15.93 and 11.59 is: 15.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.64 : 15.93 = 11.59 : x
  2. Step 2: Convert to fraction form
    11.64/15.93 = 11.59/x
  3. Step 3: Cross multiply
    11.64x = 15.93 × 11.59
  4. Step 4: Simplify right side
    11.64x = 184.68
  5. Step 5: Solve for x
    x = 184.68/11.64
  6. Step 6: Final answer
    x = 15.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.