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Finding the Fourth Proportional to 8,018.70, 11,060.60 and 5,031.92

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Solution

The fourth proportional to 8,018.70, 11,060.60 and 5,031.92 is: 6,940.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,018.70 : 11,060.60 = 5,031.92 : x
  2. Step 2: Convert to fraction form
    8,018.70/11,060.60 = 5,031.92/x
  3. Step 3: Cross multiply
    8,018.70x = 11,060.60 × 5,031.92
  4. Step 4: Simplify right side
    8,018.70x = 55,656,085.15
  5. Step 5: Solve for x
    x = 55,656,085.15/8,018.70
  6. Step 6: Final answer
    x = 6,940.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.