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Finding the Fourth Proportional to 69,327.78, 103,991.67 and 22,580.65

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Solution

The fourth proportional to 69,327.78, 103,991.67 and 22,580.65 is: 33,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,327.78 : 103,991.67 = 22,580.65 : x
  2. Step 2: Convert to fraction form
    69,327.78/103,991.67 = 22,580.65/x
  3. Step 3: Cross multiply
    69,327.78x = 103,991.67 × 22,580.65
  4. Step 4: Simplify right side
    69,327.78x = 2,348,199,503.19
  5. Step 5: Solve for x
    x = 2,348,199,503.19/69,327.78
  6. Step 6: Final answer
    x = 33,870.98

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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.