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Finding the Fourth Proportional to 26,919.54, 40,385.08 and 8,201.09

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Solution

The fourth proportional to 26,919.54, 40,385.08 and 8,201.09 is: 12,303.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,919.54 : 40,385.08 = 8,201.09 : x
  2. Step 2: Convert to fraction form
    26,919.54/40,385.08 = 8,201.09/x
  3. Step 3: Cross multiply
    26,919.54x = 40,385.08 × 8,201.09
  4. Step 4: Simplify right side
    26,919.54x = 331,201,484.06
  5. Step 5: Solve for x
    x = 331,201,484.06/26,919.54
  6. Step 6: Final answer
    x = 12,303.38

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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.