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Finding the Fourth Proportional to 43,857.57, 65,793.26 and 18,904.71

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Solution

The fourth proportional to 43,857.57, 65,793.26 and 18,904.71 is: 28,360.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,857.57 : 65,793.26 = 18,904.71 : x
  2. Step 2: Convert to fraction form
    43,857.57/65,793.26 = 18,904.71/x
  3. Step 3: Cross multiply
    43,857.57x = 65,793.26 × 18,904.71
  4. Step 4: Simplify right side
    43,857.57x = 1,243,802,405.73
  5. Step 5: Solve for x
    x = 1,243,802,405.73/43,857.57
  6. Step 6: Final answer
    x = 28,360.04

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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.