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Finding the Fourth Proportional to 69,364.66, 104,050.58 and 21,984.79

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Solution

The fourth proportional to 69,364.66, 104,050.58 and 21,984.79 is: 32,978.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,364.66 : 104,050.58 = 21,984.79 : x
  2. Step 2: Convert to fraction form
    69,364.66/104,050.58 = 21,984.79/x
  3. Step 3: Cross multiply
    69,364.66x = 104,050.58 × 21,984.79
  4. Step 4: Simplify right side
    69,364.66x = 2,287,530,150.68
  5. Step 5: Solve for x
    x = 2,287,530,150.68/69,364.66
  6. Step 6: Final answer
    x = 32,978.32

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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.