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Finding the Fourth Proportional to 43,771.52, 65,601.12 and 18,782.48

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Solution

The fourth proportional to 43,771.52, 65,601.12 and 18,782.48 is: 28,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,771.52 : 65,601.12 = 18,782.48 : x
  2. Step 2: Convert to fraction form
    43,771.52/65,601.12 = 18,782.48/x
  3. Step 3: Cross multiply
    43,771.52x = 65,601.12 × 18,782.48
  4. Step 4: Simplify right side
    43,771.52x = 1,232,151,724.38
  5. Step 5: Solve for x
    x = 1,232,151,724.38/43,771.52
  6. Step 6: Final answer
    x = 28,149.62

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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.