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Finding the Fourth Proportional to 26,520.56, 39,780.96 and 8,052.56

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Solution

The fourth proportional to 26,520.56, 39,780.96 and 8,052.56 is: 12,078.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,520.56 : 39,780.96 = 8,052.56 : x
  2. Step 2: Convert to fraction form
    26,520.56/39,780.96 = 8,052.56/x
  3. Step 3: Cross multiply
    26,520.56x = 39,780.96 × 8,052.56
  4. Step 4: Simplify right side
    26,520.56x = 320,338,567.26
  5. Step 5: Solve for x
    x = 320,338,567.26/26,520.56
  6. Step 6: Final answer
    x = 12,078.88

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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.