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Finding the Fourth Proportional to 15.68, 23.46 and 9.64

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Solution

The fourth proportional to 15.68, 23.46 and 9.64 is: 14.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.68 : 23.46 = 9.64 : x
  2. Step 2: Convert to fraction form
    15.68/23.46 = 9.64/x
  3. Step 3: Cross multiply
    15.68x = 23.46 × 9.64
  4. Step 4: Simplify right side
    15.68x = 226.15
  5. Step 5: Solve for x
    x = 226.15/15.68
  6. Step 6: Final answer
    x = 14.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.