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Finding the Fourth Proportional to 5.62, 8.36 and 5.56

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Solution

The fourth proportional to 5.62, 8.36 and 5.56 is: 8.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.62 : 8.36 = 5.56 : x
  2. Step 2: Convert to fraction form
    5.62/8.36 = 5.56/x
  3. Step 3: Cross multiply
    5.62x = 8.36 × 5.56
  4. Step 4: Simplify right side
    5.62x = 46.48
  5. Step 5: Solve for x
    x = 46.48/5.62
  6. Step 6: Final answer
    x = 8.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.