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Finding the Fourth Proportional to 43,669.44, 65,505.60 and 12,079.44

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Solution

The fourth proportional to 43,669.44, 65,505.60 and 12,079.44 is: 18,119.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,669.44 : 65,505.60 = 12,079.44 : x
  2. Step 2: Convert to fraction form
    43,669.44/65,505.60 = 12,079.44/x
  3. Step 3: Cross multiply
    43,669.44x = 65,505.60 × 12,079.44
  4. Step 4: Simplify right side
    43,669.44x = 791,270,964.86
  5. Step 5: Solve for x
    x = 791,270,964.86/43,669.44
  6. Step 6: Final answer
    x = 18,119.56

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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.