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Finding the Fourth Proportional to 55,793.62, 83,702.98 and 18,357.47

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Solution

The fourth proportional to 55,793.62, 83,702.98 and 18,357.47 is: 27,540.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,793.62 : 83,702.98 = 18,357.47 : x
  2. Step 2: Convert to fraction form
    55,793.62/83,702.98 = 18,357.47/x
  3. Step 3: Cross multiply
    55,793.62x = 83,702.98 × 18,357.47
  4. Step 4: Simplify right side
    55,793.62x = 1,536,575,241.52
  5. Step 5: Solve for x
    x = 1,536,575,241.52/55,793.62
  6. Step 6: Final answer
    x = 27,540.34

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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.