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Finding the Fourth Proportional to 57,393.54, 86,078.01 and 17,945.54

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Solution

The fourth proportional to 57,393.54, 86,078.01 and 17,945.54 is: 26,914.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,393.54 : 86,078.01 = 17,945.54 : x
  2. Step 2: Convert to fraction form
    57,393.54/86,078.01 = 17,945.54/x
  3. Step 3: Cross multiply
    57,393.54x = 86,078.01 × 17,945.54
  4. Step 4: Simplify right side
    57,393.54x = 1,544,715,941.19
  5. Step 5: Solve for x
    x = 1,544,715,941.19/57,393.54
  6. Step 6: Final answer
    x = 26,914.46

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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.