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Finding the Fourth Proportional to 4.61, 6.94 and 4.32

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Solution

The fourth proportional to 4.61, 6.94 and 4.32 is: 6.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.61 : 6.94 = 4.32 : x
  2. Step 2: Convert to fraction form
    4.61/6.94 = 4.32/x
  3. Step 3: Cross multiply
    4.61x = 6.94 × 4.32
  4. Step 4: Simplify right side
    4.61x = 29.96
  5. Step 5: Solve for x
    x = 29.96/4.61
  6. Step 6: Final answer
    x = 6.51

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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.