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Finding the Fourth Proportional to 55,203.96, 82,751.94 and 21,912.96

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Solution

The fourth proportional to 55,203.96, 82,751.94 and 21,912.96 is: 32,848.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,203.96 : 82,751.94 = 21,912.96 : x
  2. Step 2: Convert to fraction form
    55,203.96/82,751.94 = 21,912.96/x
  3. Step 3: Cross multiply
    55,203.96x = 82,751.94 × 21,912.96
  4. Step 4: Simplify right side
    55,203.96x = 1,813,339,951.14
  5. Step 5: Solve for x
    x = 1,813,339,951.14/55,203.96
  6. Step 6: Final answer
    x = 32,848.00

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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.