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Finding the Fourth Proportional to 29.44, 40.66 and 23.30

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Solution

The fourth proportional to 29.44, 40.66 and 23.30 is: 32.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.44 : 40.66 = 23.30 : x
  2. Step 2: Convert to fraction form
    29.44/40.66 = 23.30/x
  3. Step 3: Cross multiply
    29.44x = 40.66 × 23.30
  4. Step 4: Simplify right side
    29.44x = 947.38
  5. Step 5: Solve for x
    x = 947.38/29.44
  6. Step 6: Final answer
    x = 32.18

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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.