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Finding the Fourth Proportional to 4.16, 6.25 and 2.67

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Solution

The fourth proportional to 4.16, 6.25 and 2.67 is: 4.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.16 : 6.25 = 2.67 : x
  2. Step 2: Convert to fraction form
    4.16/6.25 = 2.67/x
  3. Step 3: Cross multiply
    4.16x = 6.25 × 2.67
  4. Step 4: Simplify right side
    4.16x = 16.67
  5. Step 5: Solve for x
    x = 16.67/4.16
  6. Step 6: Final answer
    x = 4.01

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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.