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Finding the Fourth Proportional to 19,099.62, 28,654.92 and 8,007.84

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Solution

The fourth proportional to 19,099.62, 28,654.92 and 8,007.84 is: 12,014.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,099.62 : 28,654.92 = 8,007.84 : x
  2. Step 2: Convert to fraction form
    19,099.62/28,654.92 = 8,007.84/x
  3. Step 3: Cross multiply
    19,099.62x = 28,654.92 × 8,007.84
  4. Step 4: Simplify right side
    19,099.62x = 229,464,014.57
  5. Step 5: Solve for x
    x = 229,464,014.57/19,099.62
  6. Step 6: Final answer
    x = 12,014.06

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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.