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Finding the Fourth Proportional to 26,572.12, 39,855.74 and 8,104.12

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Solution

The fourth proportional to 26,572.12, 39,855.74 and 8,104.12 is: 12,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,572.12 : 39,855.74 = 8,104.12 : x
  2. Step 2: Convert to fraction form
    26,572.12/39,855.74 = 8,104.12/x
  3. Step 3: Cross multiply
    26,572.12x = 39,855.74 × 8,104.12
  4. Step 4: Simplify right side
    26,572.12x = 322,995,559.49
  5. Step 5: Solve for x
    x = 322,995,559.49/26,572.12
  6. Step 6: Final answer
    x = 12,155.43

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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.