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Finding the Fourth Proportional to 7,362.78, 10,161.09 and 4,219.98

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Solution

The fourth proportional to 7,362.78, 10,161.09 and 4,219.98 is: 5,823.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,362.78 : 10,161.09 = 4,219.98 : x
  2. Step 2: Convert to fraction form
    7,362.78/10,161.09 = 4,219.98/x
  3. Step 3: Cross multiply
    7,362.78x = 10,161.09 × 4,219.98
  4. Step 4: Simplify right side
    7,362.78x = 42,879,596.58
  5. Step 5: Solve for x
    x = 42,879,596.58/7,362.78
  6. Step 6: Final answer
    x = 5,823.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.