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Finding the Fourth Proportional to 19,189.62, 28,788.32 and 8,096.33

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Solution

The fourth proportional to 19,189.62, 28,788.32 and 8,096.33 is: 12,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.62 : 28,788.32 = 8,096.33 : x
  2. Step 2: Convert to fraction form
    19,189.62/28,788.32 = 8,096.33/x
  3. Step 3: Cross multiply
    19,189.62x = 28,788.32 × 8,096.33
  4. Step 4: Simplify right side
    19,189.62x = 233,079,770.35
  5. Step 5: Solve for x
    x = 233,079,770.35/19,189.62
  6. Step 6: Final answer
    x = 12,146.14

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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.