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Finding the Fourth Proportional to 43,951.72, 65,893.50 and 21,749.80

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Solution

The fourth proportional to 43,951.72, 65,893.50 and 21,749.80 is: 32,607.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,951.72 : 65,893.50 = 21,749.80 : x
  2. Step 2: Convert to fraction form
    43,951.72/65,893.50 = 21,749.80/x
  3. Step 3: Cross multiply
    43,951.72x = 65,893.50 × 21,749.80
  4. Step 4: Simplify right side
    43,951.72x = 1,433,170,446.30
  5. Step 5: Solve for x
    x = 1,433,170,446.30/43,951.72
  6. Step 6: Final answer
    x = 32,607.84

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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.