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Finding the Fourth Proportional to 36,879.78, 55,323.11 and 14,687.80

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Solution

The fourth proportional to 36,879.78, 55,323.11 and 14,687.80 is: 22,033.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,879.78 : 55,323.11 = 14,687.80 : x
  2. Step 2: Convert to fraction form
    36,879.78/55,323.11 = 14,687.80/x
  3. Step 3: Cross multiply
    36,879.78x = 55,323.11 × 14,687.80
  4. Step 4: Simplify right side
    36,879.78x = 812,574,775.06
  5. Step 5: Solve for x
    x = 812,574,775.06/36,879.78
  6. Step 6: Final answer
    x = 22,033.07

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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.