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Finding the Fourth Proportional to 26,640.36, 39,965.04 and 11,059.20

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Solution

The fourth proportional to 26,640.36, 39,965.04 and 11,059.20 is: 16,590.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,640.36 : 39,965.04 = 11,059.20 : x
  2. Step 2: Convert to fraction form
    26,640.36/39,965.04 = 11,059.20/x
  3. Step 3: Cross multiply
    26,640.36x = 39,965.04 × 11,059.20
  4. Step 4: Simplify right side
    26,640.36x = 441,981,370.37
  5. Step 5: Solve for x
    x = 441,981,370.37/26,640.36
  6. Step 6: Final answer
    x = 16,590.67

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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.