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Finding the Fourth Proportional to 69,795.95, 104,692.57 and 19,876.37

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Solution

The fourth proportional to 69,795.95, 104,692.57 and 19,876.37 is: 29,814.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,795.95 : 104,692.57 = 19,876.37 : x
  2. Step 2: Convert to fraction form
    69,795.95/104,692.57 = 19,876.37/x
  3. Step 3: Cross multiply
    69,795.95x = 104,692.57 × 19,876.37
  4. Step 4: Simplify right side
    69,795.95x = 2,080,907,684.42
  5. Step 5: Solve for x
    x = 2,080,907,684.42/69,795.95
  6. Step 6: Final answer
    x = 29,814.16

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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.