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Finding the Fourth Proportional to 9.34, 14 and 9.14

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Solution

The fourth proportional to 9.34, 14 and 9.14 is: 13.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.34 : 14 = 9.14 : x
  2. Step 2: Convert to fraction form
    9.34/14 = 9.14/x
  3. Step 3: Cross multiply
    9.34x = 14 × 9.14
  4. Step 4: Simplify right side
    9.34x = 127.96
  5. Step 5: Solve for x
    x = 127.96/9.34
  6. Step 6: Final answer
    x = 13.70

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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.