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Finding the Fourth Proportional to 2,031.23, 3,047.07 and 798.48

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Solution

The fourth proportional to 2,031.23, 3,047.07 and 798.48 is: 1,197.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.23 : 3,047.07 = 798.48 : x
  2. Step 2: Convert to fraction form
    2,031.23/3,047.07 = 798.48/x
  3. Step 3: Cross multiply
    2,031.23x = 3,047.07 × 798.48
  4. Step 4: Simplify right side
    2,031.23x = 2,433,027.45
  5. Step 5: Solve for x
    x = 2,433,027.45/2,031.23
  6. Step 6: Final answer
    x = 1,197.81

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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.