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Finding the Fourth Proportional to 26,773.70, 36,947.07 and 15,443.21

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Solution

The fourth proportional to 26,773.70, 36,947.07 and 15,443.21 is: 21,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,773.70 : 36,947.07 = 15,443.21 : x
  2. Step 2: Convert to fraction form
    26,773.70/36,947.07 = 15,443.21/x
  3. Step 3: Cross multiply
    26,773.70x = 36,947.07 × 15,443.21
  4. Step 4: Simplify right side
    26,773.70x = 570,581,453.26
  5. Step 5: Solve for x
    x = 570,581,453.26/26,773.70
  6. Step 6: Final answer
    x = 21,311.27

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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.