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Finding the Fourth Proportional to 66,919.93, 100,357.77 and 22,535.66

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Solution

The fourth proportional to 66,919.93, 100,357.77 and 22,535.66 is: 33,796.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,919.93 : 100,357.77 = 22,535.66 : x
  2. Step 2: Convert to fraction form
    66,919.93/100,357.77 = 22,535.66/x
  3. Step 3: Cross multiply
    66,919.93x = 100,357.77 × 22,535.66
  4. Step 4: Simplify right side
    66,919.93x = 2,261,628,918.48
  5. Step 5: Solve for x
    x = 2,261,628,918.48/66,919.93
  6. Step 6: Final answer
    x = 33,796.05

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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.