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Finding the Fourth Proportional to 10.88, 16.36 and 9.52

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Solution

The fourth proportional to 10.88, 16.36 and 9.52 is: 14.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.88 : 16.36 = 9.52 : x
  2. Step 2: Convert to fraction form
    10.88/16.36 = 9.52/x
  3. Step 3: Cross multiply
    10.88x = 16.36 × 9.52
  4. Step 4: Simplify right side
    10.88x = 155.75
  5. Step 5: Solve for x
    x = 155.75/10.88
  6. Step 6: Final answer
    x = 14.32

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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.