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Finding the Fourth Proportional to 18,598.74, 27,890.49 and 9,235.38

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Solution

The fourth proportional to 18,598.74, 27,890.49 and 9,235.38 is: 13,849.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,598.74 : 27,890.49 = 9,235.38 : x
  2. Step 2: Convert to fraction form
    18,598.74/27,890.49 = 9,235.38/x
  3. Step 3: Cross multiply
    18,598.74x = 27,890.49 × 9,235.38
  4. Step 4: Simplify right side
    18,598.74x = 257,579,273.54
  5. Step 5: Solve for x
    x = 257,579,273.54/18,598.74
  6. Step 6: Final answer
    x = 13,849.29

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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.