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Finding the Fourth Proportional to 6,672.21, 9,207.71 and 3,647.41

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Solution

The fourth proportional to 6,672.21, 9,207.71 and 3,647.41 is: 5,033.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672.21 : 9,207.71 = 3,647.41 : x
  2. Step 2: Convert to fraction form
    6,672.21/9,207.71 = 3,647.41/x
  3. Step 3: Cross multiply
    6,672.21x = 9,207.71 × 3,647.41
  4. Step 4: Simplify right side
    6,672.21x = 33,584,317.75
  5. Step 5: Solve for x
    x = 33,584,317.75/6,672.21
  6. Step 6: Final answer
    x = 5,033.47

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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.