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Finding the Fourth Proportional to 27,951.20, 41,926.80 and 16,287.20

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Solution

The fourth proportional to 27,951.20, 41,926.80 and 16,287.20 is: 24,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,951.20 : 41,926.80 = 16,287.20 : x
  2. Step 2: Convert to fraction form
    27,951.20/41,926.80 = 16,287.20/x
  3. Step 3: Cross multiply
    27,951.20x = 41,926.80 × 16,287.20
  4. Step 4: Simplify right side
    27,951.20x = 682,870,176.96
  5. Step 5: Solve for x
    x = 682,870,176.96/27,951.20
  6. Step 6: Final answer
    x = 24,430.80

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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.