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Finding the Fourth Proportional to 40,009.80, 60,022.26 and 13,713.96

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Solution

The fourth proportional to 40,009.80, 60,022.26 and 13,713.96 is: 20,573.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,009.80 : 60,022.26 = 13,713.96 : x
  2. Step 2: Convert to fraction form
    40,009.80/60,022.26 = 13,713.96/x
  3. Step 3: Cross multiply
    40,009.80x = 60,022.26 × 13,713.96
  4. Step 4: Simplify right side
    40,009.80x = 823,142,872.75
  5. Step 5: Solve for x
    x = 823,142,872.75/40,009.80
  6. Step 6: Final answer
    x = 20,573.53

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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.