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Finding the Fourth Proportional to 57,699.54, 86,562.27 and 18,259.02

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Solution

The fourth proportional to 57,699.54, 86,562.27 and 18,259.02 is: 27,392.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,699.54 : 86,562.27 = 18,259.02 : x
  2. Step 2: Convert to fraction form
    57,699.54/86,562.27 = 18,259.02/x
  3. Step 3: Cross multiply
    57,699.54x = 86,562.27 × 18,259.02
  4. Step 4: Simplify right side
    57,699.54x = 1,580,542,219.18
  5. Step 5: Solve for x
    x = 1,580,542,219.18/57,699.54
  6. Step 6: Final answer
    x = 27,392.63

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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.