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Finding the Fourth Proportional to 55,740, 76,896.08 and 33,079.95

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Solution

The fourth proportional to 55,740, 76,896.08 and 33,079.95 is: 45,635.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,740 : 76,896.08 = 33,079.95 : x
  2. Step 2: Convert to fraction form
    55,740/76,896.08 = 33,079.95/x
  3. Step 3: Cross multiply
    55,740x = 76,896.08 × 33,079.95
  4. Step 4: Simplify right side
    55,740x = 2,543,718,481.60
  5. Step 5: Solve for x
    x = 2,543,718,481.60/55,740
  6. Step 6: Final answer
    x = 45,635.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.