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Finding the Fourth Proportional to 3.56, 4.92 and 3.36

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Solution

The fourth proportional to 3.56, 4.92 and 3.36 is: 4.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.56 : 4.92 = 3.36 : x
  2. Step 2: Convert to fraction form
    3.56/4.92 = 3.36/x
  3. Step 3: Cross multiply
    3.56x = 4.92 × 3.36
  4. Step 4: Simplify right side
    3.56x = 16.53
  5. Step 5: Solve for x
    x = 16.53/3.56
  6. Step 6: Final answer
    x = 4.64

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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.