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Finding the Fourth Proportional to 26,827.96, 40,250.18 and 12,805.88

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Solution

The fourth proportional to 26,827.96, 40,250.18 and 12,805.88 is: 19,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,827.96 : 40,250.18 = 12,805.88 : x
  2. Step 2: Convert to fraction form
    26,827.96/40,250.18 = 12,805.88/x
  3. Step 3: Cross multiply
    26,827.96x = 40,250.18 × 12,805.88
  4. Step 4: Simplify right side
    26,827.96x = 515,438,975.06
  5. Step 5: Solve for x
    x = 515,438,975.06/26,827.96
  6. Step 6: Final answer
    x = 19,212.75

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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.