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Finding the Fourth Proportional to 26,751.54, 40,131.81 and 9,885.54

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Solution

The fourth proportional to 26,751.54, 40,131.81 and 9,885.54 is: 14,829.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,751.54 : 40,131.81 = 9,885.54 : x
  2. Step 2: Convert to fraction form
    26,751.54/40,131.81 = 9,885.54/x
  3. Step 3: Cross multiply
    26,751.54x = 40,131.81 × 9,885.54
  4. Step 4: Simplify right side
    26,751.54x = 396,724,613.03
  5. Step 5: Solve for x
    x = 396,724,613.03/26,751.54
  6. Step 6: Final answer
    x = 14,829.97

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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.