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Finding the Third Proportional to 698.63 and 1,533.94

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Solution

The third proportional to 698.63 and 1,533.94 is: 3,367.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.63 : 1,533.94 = 1,533.94 : x
  2. Step 2: Convert to fraction form
    698.63/1,533.94 = 1,533.94/x
  3. Step 3: Cross multiply
    698.63x = 1,533.94 × 1,533.94
  4. Step 4: Simplify right side
    698.63x = 2,352,964.25
  5. Step 5: Solve for x
    x = 2,352,964.25/698.63
  6. Step 6: Final answer
    x = 3,367.99

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.