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Finding the Fourth Proportional to 15.50, 23.25 and 4.67

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Solution

The fourth proportional to 15.50, 23.25 and 4.67 is: 7.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.50 : 23.25 = 4.67 : x
  2. Step 2: Convert to fraction form
    15.50/23.25 = 4.67/x
  3. Step 3: Cross multiply
    15.50x = 23.25 × 4.67
  4. Step 4: Simplify right side
    15.50x = 108.61
  5. Step 5: Solve for x
    x = 108.61/15.50
  6. Step 6: Final answer
    x = 7.01

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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.