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Finding the Fourth Proportional to 26,425.44, 39,640.92 and 8,896.68

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Solution

The fourth proportional to 26,425.44, 39,640.92 and 8,896.68 is: 13,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,425.44 : 39,640.92 = 8,896.68 : x
  2. Step 2: Convert to fraction form
    26,425.44/39,640.92 = 8,896.68/x
  3. Step 3: Cross multiply
    26,425.44x = 39,640.92 × 8,896.68
  4. Step 4: Simplify right side
    26,425.44x = 352,672,580.15
  5. Step 5: Solve for x
    x = 352,672,580.15/26,425.44
  6. Step 6: Final answer
    x = 13,345.95

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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.