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Finding the Fourth Proportional to 43,347.89, 65,015.94 and 11,759.98

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Solution

The fourth proportional to 43,347.89, 65,015.94 and 11,759.98 is: 17,638.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,347.89 : 65,015.94 = 11,759.98 : x
  2. Step 2: Convert to fraction form
    43,347.89/65,015.94 = 11,759.98/x
  3. Step 3: Cross multiply
    43,347.89x = 65,015.94 × 11,759.98
  4. Step 4: Simplify right side
    43,347.89x = 764,586,154.08
  5. Step 5: Solve for x
    x = 764,586,154.08/43,347.89
  6. Step 6: Final answer
    x = 17,638.37

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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.