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Finding the Fourth Proportional to 66,891, 100,342.98 and 22,528.92

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Solution

The fourth proportional to 66,891, 100,342.98 and 22,528.92 is: 33,795.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,891 : 100,342.98 = 22,528.92 : x
  2. Step 2: Convert to fraction form
    66,891/100,342.98 = 22,528.92/x
  3. Step 3: Cross multiply
    66,891x = 100,342.98 × 22,528.92
  4. Step 4: Simplify right side
    66,891x = 2,260,618,968.98
  5. Step 5: Solve for x
    x = 2,260,618,968.98/66,891
  6. Step 6: Final answer
    x = 33,795.56

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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.