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Finding the Fourth Proportional to 57,500.99, 86,255.14 and 18,059.66

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Solution

The fourth proportional to 57,500.99, 86,255.14 and 18,059.66 is: 27,090.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,500.99 : 86,255.14 = 18,059.66 : x
  2. Step 2: Convert to fraction form
    57,500.99/86,255.14 = 18,059.66/x
  3. Step 3: Cross multiply
    57,500.99x = 86,255.14 × 18,059.66
  4. Step 4: Simplify right side
    57,500.99x = 1,557,738,501.65
  5. Step 5: Solve for x
    x = 1,557,738,501.65/57,500.99
  6. Step 6: Final answer
    x = 27,090.64

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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.