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Finding the Fourth Proportional to 34.96, 52.44 and 9.28

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Solution

The fourth proportional to 34.96, 52.44 and 9.28 is: 13.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.96 : 52.44 = 9.28 : x
  2. Step 2: Convert to fraction form
    34.96/52.44 = 9.28/x
  3. Step 3: Cross multiply
    34.96x = 52.44 × 9.28
  4. Step 4: Simplify right side
    34.96x = 486.54
  5. Step 5: Solve for x
    x = 486.54/34.96
  6. Step 6: Final answer
    x = 13.92

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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.