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Finding the Fourth Proportional to 6,255.70, 9,383.55 and 5,453.80

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Solution

The fourth proportional to 6,255.70, 9,383.55 and 5,453.80 is: 8,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,255.70 : 9,383.55 = 5,453.80 : x
  2. Step 2: Convert to fraction form
    6,255.70/9,383.55 = 5,453.80/x
  3. Step 3: Cross multiply
    6,255.70x = 9,383.55 × 5,453.80
  4. Step 4: Simplify right side
    6,255.70x = 51,176,004.99
  5. Step 5: Solve for x
    x = 51,176,004.99/6,255.70
  6. Step 6: Final answer
    x = 8,180.70

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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.