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Finding the Fourth Proportional to 6.22, 9.32 and 4.32

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Solution

The fourth proportional to 6.22, 9.32 and 4.32 is: 6.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.22 : 9.32 = 4.32 : x
  2. Step 2: Convert to fraction form
    6.22/9.32 = 4.32/x
  3. Step 3: Cross multiply
    6.22x = 9.32 × 4.32
  4. Step 4: Simplify right side
    6.22x = 40.19
  5. Step 5: Solve for x
    x = 40.19/6.22
  6. Step 6: Final answer
    x = 6.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.