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Finding the Fourth Proportional to 44.15, 66.24 and 23.86

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Solution

The fourth proportional to 44.15, 66.24 and 23.86 is: 35.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.15 : 66.24 = 23.86 : x
  2. Step 2: Convert to fraction form
    44.15/66.24 = 23.86/x
  3. Step 3: Cross multiply
    44.15x = 66.24 × 23.86
  4. Step 4: Simplify right side
    44.15x = 1,580.49
  5. Step 5: Solve for x
    x = 1,580.49/44.15
  6. Step 6: Final answer
    x = 35.80

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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.