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Finding the Fourth Proportional to 4.67, 7.01 and 1.67

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Solution

The fourth proportional to 4.67, 7.01 and 1.67 is: 2.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.67 : 7.01 = 1.67 : x
  2. Step 2: Convert to fraction form
    4.67/7.01 = 1.67/x
  3. Step 3: Cross multiply
    4.67x = 7.01 × 1.67
  4. Step 4: Simplify right side
    4.67x = 11.67
  5. Step 5: Solve for x
    x = 11.67/4.67
  6. Step 6: Final answer
    x = 2.50

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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.