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Finding the Fourth Proportional to 7,879.36, 11,818.16 and 2,036.48

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Solution

The fourth proportional to 7,879.36, 11,818.16 and 2,036.48 is: 3,054.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.36 : 11,818.16 = 2,036.48 : x
  2. Step 2: Convert to fraction form
    7,879.36/11,818.16 = 2,036.48/x
  3. Step 3: Cross multiply
    7,879.36x = 11,818.16 × 2,036.48
  4. Step 4: Simplify right side
    7,879.36x = 24,067,446.48
  5. Step 5: Solve for x
    x = 24,067,446.48/7,879.36
  6. Step 6: Final answer
    x = 3,054.49

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1.5x scale

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.