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Finding the Fourth Proportional to 7,879.40, 11,818.14 and 2,035.52

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Solution

The fourth proportional to 7,879.40, 11,818.14 and 2,035.52 is: 3,053.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.40 : 11,818.14 = 2,035.52 : x
  2. Step 2: Convert to fraction form
    7,879.40/11,818.14 = 2,035.52/x
  3. Step 3: Cross multiply
    7,879.40x = 11,818.14 × 2,035.52
  4. Step 4: Simplify right side
    7,879.40x = 24,056,060.33
  5. Step 5: Solve for x
    x = 24,056,060.33/7,879.40
  6. Step 6: Final answer
    x = 3,053.03

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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.