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Finding the Fourth Proportional to 3,539.34, 5,313.11 and 1,899.09

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Solution

The fourth proportional to 3,539.34, 5,313.11 and 1,899.09 is: 2,850.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.34 : 5,313.11 = 1,899.09 : x
  2. Step 2: Convert to fraction form
    3,539.34/5,313.11 = 1,899.09/x
  3. Step 3: Cross multiply
    3,539.34x = 5,313.11 × 1,899.09
  4. Step 4: Simplify right side
    3,539.34x = 10,090,038.01
  5. Step 5: Solve for x
    x = 10,090,038.01/3,539.34
  6. Step 6: Final answer
    x = 2,850.83

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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.