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Finding the Fourth Proportional to 2,059.99, 3,090.12 and 873.82

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Solution

The fourth proportional to 2,059.99, 3,090.12 and 873.82 is: 1,310.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,059.99 : 3,090.12 = 873.82 : x
  2. Step 2: Convert to fraction form
    2,059.99/3,090.12 = 873.82/x
  3. Step 3: Cross multiply
    2,059.99x = 3,090.12 × 873.82
  4. Step 4: Simplify right side
    2,059.99x = 2,700,204.29
  5. Step 5: Solve for x
    x = 2,700,204.29/2,059.99
  6. Step 6: Final answer
    x = 1,310.79

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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.