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Finding the Fourth Proportional to 9.34, 13.94 and 9.24

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Solution

The fourth proportional to 9.34, 13.94 and 9.24 is: 13.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.34 : 13.94 = 9.24 : x
  2. Step 2: Convert to fraction form
    9.34/13.94 = 9.24/x
  3. Step 3: Cross multiply
    9.34x = 13.94 × 9.24
  4. Step 4: Simplify right side
    9.34x = 128.84
  5. Step 5: Solve for x
    x = 128.84/9.34
  6. Step 6: Final answer
    x = 13.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.