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Finding the Fourth Proportional to 18,583.68, 27,879.77 and 8,055.47

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Solution

The fourth proportional to 18,583.68, 27,879.77 and 8,055.47 is: 12,085.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,583.68 : 27,879.77 = 8,055.47 : x
  2. Step 2: Convert to fraction form
    18,583.68/27,879.77 = 8,055.47/x
  3. Step 3: Cross multiply
    18,583.68x = 27,879.77 × 8,055.47
  4. Step 4: Simplify right side
    18,583.68x = 224,584,471.17
  5. Step 5: Solve for x
    x = 224,584,471.17/18,583.68
  6. Step 6: Final answer
    x = 12,085.04

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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.