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Finding the Fourth Proportional to 3,596.60, 5,391.70 and 3,207.80

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Solution

The fourth proportional to 3,596.60, 5,391.70 and 3,207.80 is: 4,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,596.60 : 5,391.70 = 3,207.80 : x
  2. Step 2: Convert to fraction form
    3,596.60/5,391.70 = 3,207.80/x
  3. Step 3: Cross multiply
    3,596.60x = 5,391.70 × 3,207.80
  4. Step 4: Simplify right side
    3,596.60x = 17,295,495.26
  5. Step 5: Solve for x
    x = 17,295,495.26/3,596.60
  6. Step 6: Final answer
    x = 4,808.85

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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.