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Finding the Fourth Proportional to 19,096.80, 28,647.90 and 5,947.80

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Solution

The fourth proportional to 19,096.80, 28,647.90 and 5,947.80 is: 8,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,096.80 : 28,647.90 = 5,947.80 : x
  2. Step 2: Convert to fraction form
    19,096.80/28,647.90 = 5,947.80/x
  3. Step 3: Cross multiply
    19,096.80x = 28,647.90 × 5,947.80
  4. Step 4: Simplify right side
    19,096.80x = 170,391,979.62
  5. Step 5: Solve for x
    x = 170,391,979.62/19,096.80
  6. Step 6: Final answer
    x = 8,922.54

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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.