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Finding the Fourth Proportional to 5.62, 8.48 and 5.55

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Solution

The fourth proportional to 5.62, 8.48 and 5.55 is: 8.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.62 : 8.48 = 5.55 : x
  2. Step 2: Convert to fraction form
    5.62/8.48 = 5.55/x
  3. Step 3: Cross multiply
    5.62x = 8.48 × 5.55
  4. Step 4: Simplify right side
    5.62x = 47.06
  5. Step 5: Solve for x
    x = 47.06/5.62
  6. Step 6: Final answer
    x = 8.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.