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Finding the Fourth Proportional to 4.66, 6.43 and 4.32

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Solution

The fourth proportional to 4.66, 6.43 and 4.32 is: 5.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.66 : 6.43 = 4.32 : x
  2. Step 2: Convert to fraction form
    4.66/6.43 = 4.32/x
  3. Step 3: Cross multiply
    4.66x = 6.43 × 4.32
  4. Step 4: Simplify right side
    4.66x = 27.75
  5. Step 5: Solve for x
    x = 27.75/4.66
  6. Step 6: Final answer
    x = 5.96

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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.