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Finding the Fourth Proportional to 19,245.38, 28,894.92 and 9,893.33

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Solution

The fourth proportional to 19,245.38, 28,894.92 and 9,893.33 is: 14,853.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,245.38 : 28,894.92 = 9,893.33 : x
  2. Step 2: Convert to fraction form
    19,245.38/28,894.92 = 9,893.33/x
  3. Step 3: Cross multiply
    19,245.38x = 28,894.92 × 9,893.33
  4. Step 4: Simplify right side
    19,245.38x = 285,866,784.94
  5. Step 5: Solve for x
    x = 285,866,784.94/19,245.38
  6. Step 6: Final answer
    x = 14,853.79

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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.