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Finding the Fourth Proportional to 26,958.78, 40,443.44 and 8,239.68

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Solution

The fourth proportional to 26,958.78, 40,443.44 and 8,239.68 is: 12,361.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,958.78 : 40,443.44 = 8,239.68 : x
  2. Step 2: Convert to fraction form
    26,958.78/40,443.44 = 8,239.68/x
  3. Step 3: Cross multiply
    26,958.78x = 40,443.44 × 8,239.68
  4. Step 4: Simplify right side
    26,958.78x = 333,240,962.50
  5. Step 5: Solve for x
    x = 333,240,962.50/26,958.78
  6. Step 6: Final answer
    x = 12,361.13

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1.5x scale

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.