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Finding the Fourth Proportional to 1,826.83, 2,520.70 and 1,080.82

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Solution

The fourth proportional to 1,826.83, 2,520.70 and 1,080.82 is: 1,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826.83 : 2,520.70 = 1,080.82 : x
  2. Step 2: Convert to fraction form
    1,826.83/2,520.70 = 1,080.82/x
  3. Step 3: Cross multiply
    1,826.83x = 2,520.70 × 1,080.82
  4. Step 4: Simplify right side
    1,826.83x = 2,724,429.50
  5. Step 5: Solve for x
    x = 2,724,429.50/1,826.83
  6. Step 6: Final answer
    x = 1,491.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.