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Finding the Fourth Proportional to 57,699.95, 86,541.26 and 18,251.93

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Solution

The fourth proportional to 57,699.95, 86,541.26 and 18,251.93 is: 27,375.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,699.95 : 86,541.26 = 18,251.93 : x
  2. Step 2: Convert to fraction form
    57,699.95/86,541.26 = 18,251.93/x
  3. Step 3: Cross multiply
    57,699.95x = 86,541.26 × 18,251.93
  4. Step 4: Simplify right side
    57,699.95x = 1,579,545,144.73
  5. Step 5: Solve for x
    x = 1,579,545,144.73/57,699.95
  6. Step 6: Final answer
    x = 27,375.16

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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.