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Finding the Fourth Proportional to 1,826.69, 2,520.99 and 1,040.99

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Solution

The fourth proportional to 1,826.69, 2,520.99 and 1,040.99 is: 1,436.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826.69 : 2,520.99 = 1,040.99 : x
  2. Step 2: Convert to fraction form
    1,826.69/2,520.99 = 1,040.99/x
  3. Step 3: Cross multiply
    1,826.69x = 2,520.99 × 1,040.99
  4. Step 4: Simplify right side
    1,826.69x = 2,624,312.78
  5. Step 5: Solve for x
    x = 2,624,312.78/1,826.69
  6. Step 6: Final answer
    x = 1,436.65

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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.