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Finding the Fourth Proportional to 6,673.26, 9,209.10 and 4,020.78

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Solution

The fourth proportional to 6,673.26, 9,209.10 and 4,020.78 is: 5,548.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,673.26 : 9,209.10 = 4,020.78 : x
  2. Step 2: Convert to fraction form
    6,673.26/9,209.10 = 4,020.78/x
  3. Step 3: Cross multiply
    6,673.26x = 9,209.10 × 4,020.78
  4. Step 4: Simplify right side
    6,673.26x = 37,027,765.10
  5. Step 5: Solve for x
    x = 37,027,765.10/6,673.26
  6. Step 6: Final answer
    x = 5,548.68

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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.