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Finding the Fourth Proportional to 19,104.08, 28,646.91 and 8,007.79

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Solution

The fourth proportional to 19,104.08, 28,646.91 and 8,007.79 is: 12,007.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,104.08 : 28,646.91 = 8,007.79 : x
  2. Step 2: Convert to fraction form
    19,104.08/28,646.91 = 8,007.79/x
  3. Step 3: Cross multiply
    19,104.08x = 28,646.91 × 8,007.79
  4. Step 4: Simplify right side
    19,104.08x = 229,398,516.61
  5. Step 5: Solve for x
    x = 229,398,516.61/19,104.08
  6. Step 6: Final answer
    x = 12,007.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.