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Finding the Fourth Proportional to 33,134.40, 49,701.60 and 21,324.60

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Solution

The fourth proportional to 33,134.40, 49,701.60 and 21,324.60 is: 31,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,134.40 : 49,701.60 = 21,324.60 : x
  2. Step 2: Convert to fraction form
    33,134.40/49,701.60 = 21,324.60/x
  3. Step 3: Cross multiply
    33,134.40x = 49,701.60 × 21,324.60
  4. Step 4: Simplify right side
    33,134.40x = 1,059,866,739.36
  5. Step 5: Solve for x
    x = 1,059,866,739.36/33,134.40
  6. Step 6: Final answer
    x = 31,986.90

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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.