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Finding the Fourth Proportional to 1,763.67, 2,643.18 and 984.04

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Solution

The fourth proportional to 1,763.67, 2,643.18 and 984.04 is: 1,474.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763.67 : 2,643.18 = 984.04 : x
  2. Step 2: Convert to fraction form
    1,763.67/2,643.18 = 984.04/x
  3. Step 3: Cross multiply
    1,763.67x = 2,643.18 × 984.04
  4. Step 4: Simplify right side
    1,763.67x = 2,600,990.70
  5. Step 5: Solve for x
    x = 2,600,990.70/1,763.67
  6. Step 6: Final answer
    x = 1,474.76

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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.