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Finding the Fourth Proportional to 26,809.31, 40,200.97 and 8,085.89

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Solution

The fourth proportional to 26,809.31, 40,200.97 and 8,085.89 is: 12,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,809.31 : 40,200.97 = 8,085.89 : x
  2. Step 2: Convert to fraction form
    26,809.31/40,200.97 = 8,085.89/x
  3. Step 3: Cross multiply
    26,809.31x = 40,200.97 × 8,085.89
  4. Step 4: Simplify right side
    26,809.31x = 325,060,580.88
  5. Step 5: Solve for x
    x = 325,060,580.88/26,809.31
  6. Step 6: Final answer
    x = 12,124.91

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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.