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Finding the Fourth Proportional to 57,889.83, 86,833.80 and 18,446.41

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Solution

The fourth proportional to 57,889.83, 86,833.80 and 18,446.41 is: 27,669.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,889.83 : 86,833.80 = 18,446.41 : x
  2. Step 2: Convert to fraction form
    57,889.83/86,833.80 = 18,446.41/x
  3. Step 3: Cross multiply
    57,889.83x = 86,833.80 × 18,446.41
  4. Step 4: Simplify right side
    57,889.83x = 1,601,771,876.66
  5. Step 5: Solve for x
    x = 1,601,771,876.66/57,889.83
  6. Step 6: Final answer
    x = 27,669.31

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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.