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Finding the Fourth Proportional to 52,879, 79,318.98 and 17,339.80

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Solution

The fourth proportional to 52,879, 79,318.98 and 17,339.80 is: 26,009.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,879 : 79,318.98 = 17,339.80 : x
  2. Step 2: Convert to fraction form
    52,879/79,318.98 = 17,339.80/x
  3. Step 3: Cross multiply
    52,879x = 79,318.98 × 17,339.80
  4. Step 4: Simplify right side
    52,879x = 1,375,375,249.40
  5. Step 5: Solve for x
    x = 1,375,375,249.40/52,879
  6. Step 6: Final answer
    x = 26,009.86

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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.