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Finding the Fourth Proportional to 23.16, 34.64 and 17.16

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Solution

The fourth proportional to 23.16, 34.64 and 17.16 is: 25.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.16 : 34.64 = 17.16 : x
  2. Step 2: Convert to fraction form
    23.16/34.64 = 17.16/x
  3. Step 3: Cross multiply
    23.16x = 34.64 × 17.16
  4. Step 4: Simplify right side
    23.16x = 594.42
  5. Step 5: Solve for x
    x = 594.42/23.16
  6. Step 6: Final answer
    x = 25.67

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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.