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Finding the Fourth Proportional to 27,879.66, 41,816.45 and 8,158.39

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Solution

The fourth proportional to 27,879.66, 41,816.45 and 8,158.39 is: 12,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,879.66 : 41,816.45 = 8,158.39 : x
  2. Step 2: Convert to fraction form
    27,879.66/41,816.45 = 8,158.39/x
  3. Step 3: Cross multiply
    27,879.66x = 41,816.45 × 8,158.39
  4. Step 4: Simplify right side
    27,879.66x = 341,154,823.37
  5. Step 5: Solve for x
    x = 341,154,823.37/27,879.66
  6. Step 6: Final answer
    x = 12,236.69

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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.