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Finding the Fourth Proportional to 43,858.56, 65,763.96 and 21,361.62

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Solution

The fourth proportional to 43,858.56, 65,763.96 and 21,361.62 is: 32,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,858.56 : 65,763.96 = 21,361.62 : x
  2. Step 2: Convert to fraction form
    43,858.56/65,763.96 = 21,361.62/x
  3. Step 3: Cross multiply
    43,858.56x = 65,763.96 × 21,361.62
  4. Step 4: Simplify right side
    43,858.56x = 1,404,824,723.22
  5. Step 5: Solve for x
    x = 1,404,824,723.22/43,858.56
  6. Step 6: Final answer
    x = 32,030.80

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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.