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Finding the Fourth Proportional to 2,183.79, 3,275.37 and 702.83

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Solution

The fourth proportional to 2,183.79, 3,275.37 and 702.83 is: 1,054.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.79 : 3,275.37 = 702.83 : x
  2. Step 2: Convert to fraction form
    2,183.79/3,275.37 = 702.83/x
  3. Step 3: Cross multiply
    2,183.79x = 3,275.37 × 702.83
  4. Step 4: Simplify right side
    2,183.79x = 2,302,018.06
  5. Step 5: Solve for x
    x = 2,302,018.06/2,183.79
  6. Step 6: Final answer
    x = 1,054.14

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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.