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Finding the Fourth Proportional to 43.94, 61.03 and 43.60

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Solution

The fourth proportional to 43.94, 61.03 and 43.60 is: 60.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.94 : 61.03 = 43.60 : x
  2. Step 2: Convert to fraction form
    43.94/61.03 = 43.60/x
  3. Step 3: Cross multiply
    43.94x = 61.03 × 43.60
  4. Step 4: Simplify right side
    43.94x = 2,660.38
  5. Step 5: Solve for x
    x = 2,660.38/43.94
  6. Step 6: Final answer
    x = 60.55

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.