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Finding the Fourth Proportional to 69,580.32, 104,361.13 and 19,664.32

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Solution

The fourth proportional to 69,580.32, 104,361.13 and 19,664.32 is: 29,493.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,580.32 : 104,361.13 = 19,664.32 : x
  2. Step 2: Convert to fraction form
    69,580.32/104,361.13 = 19,664.32/x
  3. Step 3: Cross multiply
    69,580.32x = 104,361.13 × 19,664.32
  4. Step 4: Simplify right side
    69,580.32x = 2,052,190,670.54
  5. Step 5: Solve for x
    x = 2,052,190,670.54/69,580.32
  6. Step 6: Final answer
    x = 29,493.84

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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.