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Finding the Fourth Proportional to 4.94, 6.77 and 4.67

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Solution

The fourth proportional to 4.94, 6.77 and 4.67 is: 6.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.94 : 6.77 = 4.67 : x
  2. Step 2: Convert to fraction form
    4.94/6.77 = 4.67/x
  3. Step 3: Cross multiply
    4.94x = 6.77 × 4.67
  4. Step 4: Simplify right side
    4.94x = 31.62
  5. Step 5: Solve for x
    x = 31.62/4.94
  6. Step 6: Final answer
    x = 6.40

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.