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Finding the Fourth Proportional to 9.67, 14.48 and 8.32

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Solution

The fourth proportional to 9.67, 14.48 and 8.32 is: 12.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.67 : 14.48 = 8.32 : x
  2. Step 2: Convert to fraction form
    9.67/14.48 = 8.32/x
  3. Step 3: Cross multiply
    9.67x = 14.48 × 8.32
  4. Step 4: Simplify right side
    9.67x = 120.40
  5. Step 5: Solve for x
    x = 120.40/9.67
  6. Step 6: Final answer
    x = 12.45

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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.