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Finding the Fourth Proportional to 94.28, 141.36 and 36.46

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Solution

The fourth proportional to 94.28, 141.36 and 36.46 is: 54.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.28 : 141.36 = 36.46 : x
  2. Step 2: Convert to fraction form
    94.28/141.36 = 36.46/x
  3. Step 3: Cross multiply
    94.28x = 141.36 × 36.46
  4. Step 4: Simplify right side
    94.28x = 5,153.23
  5. Step 5: Solve for x
    x = 5,153.23/94.28
  6. Step 6: Final answer
    x = 54.66

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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.