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Finding the Fourth Proportional to 18,369.57, 27,562.16 and 10,039.86

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Solution

The fourth proportional to 18,369.57, 27,562.16 and 10,039.86 is: 15,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,369.57 : 27,562.16 = 10,039.86 : x
  2. Step 2: Convert to fraction form
    18,369.57/27,562.16 = 10,039.86/x
  3. Step 3: Cross multiply
    18,369.57x = 27,562.16 × 10,039.86
  4. Step 4: Simplify right side
    18,369.57x = 276,720,089.89
  5. Step 5: Solve for x
    x = 276,720,089.89/18,369.57
  6. Step 6: Final answer
    x = 15,064.05

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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.