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Finding the Fourth Proportional to 43,999.50, 65,997.45 and 15,920.22

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Solution

The fourth proportional to 43,999.50, 65,997.45 and 15,920.22 is: 23,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,999.50 : 65,997.45 = 15,920.22 : x
  2. Step 2: Convert to fraction form
    43,999.50/65,997.45 = 15,920.22/x
  3. Step 3: Cross multiply
    43,999.50x = 65,997.45 × 15,920.22
  4. Step 4: Simplify right side
    43,999.50x = 1,050,693,923.44
  5. Step 5: Solve for x
    x = 1,050,693,923.44/43,999.50
  6. Step 6: Final answer
    x = 23,879.68

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1.5x scale

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.