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Finding the Fourth Proportional to 6.94, 9.58 and 4.79

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Solution

The fourth proportional to 6.94, 9.58 and 4.79 is: 6.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.94 : 9.58 = 4.79 : x
  2. Step 2: Convert to fraction form
    6.94/9.58 = 4.79/x
  3. Step 3: Cross multiply
    6.94x = 9.58 × 4.79
  4. Step 4: Simplify right side
    6.94x = 45.82
  5. Step 5: Solve for x
    x = 45.82/6.94
  6. Step 6: Final answer
    x = 6.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.