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Finding the Fourth Proportional to 9.36, 14 and 9.28

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Solution

The fourth proportional to 9.36, 14 and 9.28 is: 13.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.36 : 14 = 9.28 : x
  2. Step 2: Convert to fraction form
    9.36/14 = 9.28/x
  3. Step 3: Cross multiply
    9.36x = 14 × 9.28
  4. Step 4: Simplify right side
    9.36x = 129.92
  5. Step 5: Solve for x
    x = 129.92/9.36
  6. Step 6: Final answer
    x = 13.88

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1.5x scale

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.