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Finding the Fourth Proportional to 26,845.80, 40,267.02 and 8,125.80

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Solution

The fourth proportional to 26,845.80, 40,267.02 and 8,125.80 is: 12,188.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,845.80 : 40,267.02 = 8,125.80 : x
  2. Step 2: Convert to fraction form
    26,845.80/40,267.02 = 8,125.80/x
  3. Step 3: Cross multiply
    26,845.80x = 40,267.02 × 8,125.80
  4. Step 4: Simplify right side
    26,845.80x = 327,201,751.12
  5. Step 5: Solve for x
    x = 327,201,751.12/26,845.80
  6. Step 6: Final answer
    x = 12,188.19

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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.