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Finding the Fourth Proportional to 26,759.57, 36,916.56 and 18,806.99

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Solution

The fourth proportional to 26,759.57, 36,916.56 and 18,806.99 is: 25,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,759.57 : 36,916.56 = 18,806.99 : x
  2. Step 2: Convert to fraction form
    26,759.57/36,916.56 = 18,806.99/x
  3. Step 3: Cross multiply
    26,759.57x = 36,916.56 × 18,806.99
  4. Step 4: Simplify right side
    26,759.57x = 694,289,190.17
  5. Step 5: Solve for x
    x = 694,289,190.17/26,759.57
  6. Step 6: Final answer
    x = 25,945.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.