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Finding the Fourth Proportional to 43,971.92, 65,951.50 and 14,390.92

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Solution

The fourth proportional to 43,971.92, 65,951.50 and 14,390.92 is: 21,584.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,971.92 : 65,951.50 = 14,390.92 : x
  2. Step 2: Convert to fraction form
    43,971.92/65,951.50 = 14,390.92/x
  3. Step 3: Cross multiply
    43,971.92x = 65,951.50 × 14,390.92
  4. Step 4: Simplify right side
    43,971.92x = 949,102,760.38
  5. Step 5: Solve for x
    x = 949,102,760.38/43,971.92
  6. Step 6: Final answer
    x = 21,584.29

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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.