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Finding the Fourth Proportional to 10.62, 14.67 and 9.43

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Solution

The fourth proportional to 10.62, 14.67 and 9.43 is: 13.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.62 : 14.67 = 9.43 : x
  2. Step 2: Convert to fraction form
    10.62/14.67 = 9.43/x
  3. Step 3: Cross multiply
    10.62x = 14.67 × 9.43
  4. Step 4: Simplify right side
    10.62x = 138.34
  5. Step 5: Solve for x
    x = 138.34/10.62
  6. Step 6: Final answer
    x = 13.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.