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Finding the Fourth Proportional to 23.17, 34.72 and 9.63

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Solution

The fourth proportional to 23.17, 34.72 and 9.63 is: 14.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.17 : 34.72 = 9.63 : x
  2. Step 2: Convert to fraction form
    23.17/34.72 = 9.63/x
  3. Step 3: Cross multiply
    23.17x = 34.72 × 9.63
  4. Step 4: Simplify right side
    23.17x = 334.31
  5. Step 5: Solve for x
    x = 334.31/23.17
  6. Step 6: Final answer
    x = 14.43

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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.