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Finding the Fourth Proportional to 2,031.86, 3,047.78 and 733.33

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Solution

The fourth proportional to 2,031.86, 3,047.78 and 733.33 is: 1,099.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.86 : 3,047.78 = 733.33 : x
  2. Step 2: Convert to fraction form
    2,031.86/3,047.78 = 733.33/x
  3. Step 3: Cross multiply
    2,031.86x = 3,047.78 × 733.33
  4. Step 4: Simplify right side
    2,031.86x = 2,235,013.27
  5. Step 5: Solve for x
    x = 2,235,013.27/2,031.86
  6. Step 6: Final answer
    x = 1,099.99

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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.