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Finding the Fourth Proportional to 15.14, 22.64 and 11.32

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Solution

The fourth proportional to 15.14, 22.64 and 11.32 is: 16.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.14 : 22.64 = 11.32 : x
  2. Step 2: Convert to fraction form
    15.14/22.64 = 11.32/x
  3. Step 3: Cross multiply
    15.14x = 22.64 × 11.32
  4. Step 4: Simplify right side
    15.14x = 256.26
  5. Step 5: Solve for x
    x = 256.26/15.14
  6. Step 6: Final answer
    x = 16.93

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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.