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Finding the Fourth Proportional to 3,662.35, 5,489.65 and 1,196.51

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Solution

The fourth proportional to 3,662.35, 5,489.65 and 1,196.51 is: 1,793.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,662.35 : 5,489.65 = 1,196.51 : x
  2. Step 2: Convert to fraction form
    3,662.35/5,489.65 = 1,196.51/x
  3. Step 3: Cross multiply
    3,662.35x = 5,489.65 × 1,196.51
  4. Step 4: Simplify right side
    3,662.35x = 6,568,421.12
  5. Step 5: Solve for x
    x = 6,568,421.12/3,662.35
  6. Step 6: Final answer
    x = 1,793.50

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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.