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Finding the Fourth Proportional to 19,042.35, 28,571.69 and 7,363.77

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Solution

The fourth proportional to 19,042.35, 28,571.69 and 7,363.77 is: 11,048.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,042.35 : 28,571.69 = 7,363.77 : x
  2. Step 2: Convert to fraction form
    19,042.35/28,571.69 = 7,363.77/x
  3. Step 3: Cross multiply
    19,042.35x = 28,571.69 × 7,363.77
  4. Step 4: Simplify right side
    19,042.35x = 210,395,316.85
  5. Step 5: Solve for x
    x = 210,395,316.85/19,042.35
  6. Step 6: Final answer
    x = 11,048.81

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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.