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Finding the Fourth Proportional to 3,606.99, 5,401.14 and 3,090.30

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Solution

The fourth proportional to 3,606.99, 5,401.14 and 3,090.30 is: 4,627.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.99 : 5,401.14 = 3,090.30 : x
  2. Step 2: Convert to fraction form
    3,606.99/5,401.14 = 3,090.30/x
  3. Step 3: Cross multiply
    3,606.99x = 5,401.14 × 3,090.30
  4. Step 4: Simplify right side
    3,606.99x = 16,691,142.94
  5. Step 5: Solve for x
    x = 16,691,142.94/3,606.99
  6. Step 6: Final answer
    x = 4,627.44

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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.