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Finding the Fourth Proportional to 57,559.56, 86,347.86 and 18,103.56

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Solution

The fourth proportional to 57,559.56, 86,347.86 and 18,103.56 is: 27,158.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,559.56 : 86,347.86 = 18,103.56 : x
  2. Step 2: Convert to fraction form
    57,559.56/86,347.86 = 18,103.56/x
  3. Step 3: Cross multiply
    57,559.56x = 86,347.86 × 18,103.56
  4. Step 4: Simplify right side
    57,559.56x = 1,563,203,664.38
  5. Step 5: Solve for x
    x = 1,563,203,664.38/57,559.56
  6. Step 6: Final answer
    x = 27,158.02

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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.