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Finding the Fourth Proportional to 2,057.88, 3,080.34 and 1,409.88

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Solution

The fourth proportional to 2,057.88, 3,080.34 and 1,409.88 is: 2,110.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.88 : 3,080.34 = 1,409.88 : x
  2. Step 2: Convert to fraction form
    2,057.88/3,080.34 = 1,409.88/x
  3. Step 3: Cross multiply
    2,057.88x = 3,080.34 × 1,409.88
  4. Step 4: Simplify right side
    2,057.88x = 4,342,909.76
  5. Step 5: Solve for x
    x = 4,342,909.76/2,057.88
  6. Step 6: Final answer
    x = 2,110.38

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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.