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Finding the Fourth Proportional to 17,879.64, 26,819.00 and 8,526.26

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Solution

The fourth proportional to 17,879.64, 26,819.00 and 8,526.26 is: 12,789.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.64 : 26,819.00 = 8,526.26 : x
  2. Step 2: Convert to fraction form
    17,879.64/26,819.00 = 8,526.26/x
  3. Step 3: Cross multiply
    17,879.64x = 26,819.00 × 8,526.26
  4. Step 4: Simplify right side
    17,879.64x = 228,665,823.33
  5. Step 5: Solve for x
    x = 228,665,823.33/17,879.64
  6. Step 6: Final answer
    x = 12,789.18

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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.