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Finding the Fourth Proportional to 3,636.62, 5,448.66 and 1,994.33

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Solution

The fourth proportional to 3,636.62, 5,448.66 and 1,994.33 is: 2,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.62 : 5,448.66 = 1,994.33 : x
  2. Step 2: Convert to fraction form
    3,636.62/5,448.66 = 1,994.33/x
  3. Step 3: Cross multiply
    3,636.62x = 5,448.66 × 1,994.33
  4. Step 4: Simplify right side
    3,636.62x = 10,866,426.10
  5. Step 5: Solve for x
    x = 10,866,426.10/3,636.62
  6. Step 6: Final answer
    x = 2,988.06

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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.