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Finding the Fourth Proportional to 43,343.96, 65,009.30 and 13,757.96

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Solution

The fourth proportional to 43,343.96, 65,009.30 and 13,757.96 is: 20,634.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,343.96 : 65,009.30 = 13,757.96 : x
  2. Step 2: Convert to fraction form
    43,343.96/65,009.30 = 13,757.96/x
  3. Step 3: Cross multiply
    43,343.96x = 65,009.30 × 13,757.96
  4. Step 4: Simplify right side
    43,343.96x = 894,395,349.03
  5. Step 5: Solve for x
    x = 894,395,349.03/43,343.96
  6. Step 6: Final answer
    x = 20,634.83

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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.