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Finding the Fourth Proportional to 69,705.84, 104,493.36 and 25,321.44

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Solution

The fourth proportional to 69,705.84, 104,493.36 and 25,321.44 is: 37,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,705.84 : 104,493.36 = 25,321.44 : x
  2. Step 2: Convert to fraction form
    69,705.84/104,493.36 = 25,321.44/x
  3. Step 3: Cross multiply
    69,705.84x = 104,493.36 × 25,321.44
  4. Step 4: Simplify right side
    69,705.84x = 2,645,922,345.64
  5. Step 5: Solve for x
    x = 2,645,922,345.64/69,705.84
  6. Step 6: Final answer
    x = 37,958.40

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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.