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Finding the Fourth Proportional to 11.60, 16.03 and 11.48

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Solution

The fourth proportional to 11.60, 16.03 and 11.48 is: 15.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.60 : 16.03 = 11.48 : x
  2. Step 2: Convert to fraction form
    11.60/16.03 = 11.48/x
  3. Step 3: Cross multiply
    11.60x = 16.03 × 11.48
  4. Step 4: Simplify right side
    11.60x = 184.02
  5. Step 5: Solve for x
    x = 184.02/11.60
  6. Step 6: Final answer
    x = 15.86

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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.