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Finding the Fourth Proportional to 26,396.69, 39,608.04 and 12,357.67

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Solution

The fourth proportional to 26,396.69, 39,608.04 and 12,357.67 is: 18,542.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,396.69 : 39,608.04 = 12,357.67 : x
  2. Step 2: Convert to fraction form
    26,396.69/39,608.04 = 12,357.67/x
  3. Step 3: Cross multiply
    26,396.69x = 39,608.04 × 12,357.67
  4. Step 4: Simplify right side
    26,396.69x = 489,463,034.99
  5. Step 5: Solve for x
    x = 489,463,034.99/26,396.69
  6. Step 6: Final answer
    x = 18,542.59

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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.