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Finding the Fourth Proportional to 55,099.41, 82,640.79 and 17,655.54

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Solution

The fourth proportional to 55,099.41, 82,640.79 and 17,655.54 is: 26,480.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,099.41 : 82,640.79 = 17,655.54 : x
  2. Step 2: Convert to fraction form
    55,099.41/82,640.79 = 17,655.54/x
  3. Step 3: Cross multiply
    55,099.41x = 82,640.79 × 17,655.54
  4. Step 4: Simplify right side
    55,099.41x = 1,459,067,773.48
  5. Step 5: Solve for x
    x = 1,459,067,773.48/55,099.41
  6. Step 6: Final answer
    x = 26,480.64

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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.