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Finding the Fourth Proportional to 65,590.50, 98,402.37 and 18,843.39

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Solution

The fourth proportional to 65,590.50, 98,402.37 and 18,843.39 is: 28,269.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,590.50 : 98,402.37 = 18,843.39 : x
  2. Step 2: Convert to fraction form
    65,590.50/98,402.37 = 18,843.39/x
  3. Step 3: Cross multiply
    65,590.50x = 98,402.37 × 18,843.39
  4. Step 4: Simplify right side
    65,590.50x = 1,854,234,234.83
  5. Step 5: Solve for x
    x = 1,854,234,234.83/65,590.50
  6. Step 6: Final answer
    x = 28,269.86

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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.