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Finding the Fourth Proportional to 26,559.70, 39,839.54 and 8,091.70

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Solution

The fourth proportional to 26,559.70, 39,839.54 and 8,091.70 is: 12,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,559.70 : 39,839.54 = 8,091.70 : x
  2. Step 2: Convert to fraction form
    26,559.70/39,839.54 = 8,091.70/x
  3. Step 3: Cross multiply
    26,559.70x = 39,839.54 × 8,091.70
  4. Step 4: Simplify right side
    26,559.70x = 322,369,605.82
  5. Step 5: Solve for x
    x = 322,369,605.82/26,559.70
  6. Step 6: Final answer
    x = 12,137.55

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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.