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Finding the Fourth Proportional to 55,906.80, 83,858.40 and 18,468.60

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Solution

The fourth proportional to 55,906.80, 83,858.40 and 18,468.60 is: 27,702.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,906.80 : 83,858.40 = 18,468.60 : x
  2. Step 2: Convert to fraction form
    55,906.80/83,858.40 = 18,468.60/x
  3. Step 3: Cross multiply
    55,906.80x = 83,858.40 × 18,468.60
  4. Step 4: Simplify right side
    55,906.80x = 1,548,747,246.24
  5. Step 5: Solve for x
    x = 1,548,747,246.24/55,906.80
  6. Step 6: Final answer
    x = 27,702.31

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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.