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Finding the Fourth Proportional to 57,717.89, 86,606.79 and 43,673.71

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Solution

The fourth proportional to 57,717.89, 86,606.79 and 43,673.71 is: 65,533.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,717.89 : 86,606.79 = 43,673.71 : x
  2. Step 2: Convert to fraction form
    57,717.89/86,606.79 = 43,673.71/x
  3. Step 3: Cross multiply
    57,717.89x = 86,606.79 × 43,673.71
  4. Step 4: Simplify right side
    57,717.89x = 3,782,439,737.50
  5. Step 5: Solve for x
    x = 3,782,439,737.50/57,717.89
  6. Step 6: Final answer
    x = 65,533.23

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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.