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Finding the Fourth Proportional to 66,396.84, 99,660.84 and 35,232.09

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Solution

The fourth proportional to 66,396.84, 99,660.84 and 35,232.09 is: 52,882.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,396.84 : 99,660.84 = 35,232.09 : x
  2. Step 2: Convert to fraction form
    66,396.84/99,660.84 = 35,232.09/x
  3. Step 3: Cross multiply
    66,396.84x = 99,660.84 × 35,232.09
  4. Step 4: Simplify right side
    66,396.84x = 3,511,259,684.36
  5. Step 5: Solve for x
    x = 3,511,259,684.36/66,396.84
  6. Step 6: Final answer
    x = 52,882.93

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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.