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Finding the Third Proportional to 703.69 and 1,702.88

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Solution

The third proportional to 703.69 and 1,702.88 is: 4,120.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.69 : 1,702.88 = 1,702.88 : x
  2. Step 2: Convert to fraction form
    703.69/1,702.88 = 1,702.88/x
  3. Step 3: Cross multiply
    703.69x = 1,702.88 × 1,702.88
  4. Step 4: Simplify right side
    703.69x = 2,899,783.27
  5. Step 5: Solve for x
    x = 2,899,783.27/703.69
  6. Step 6: Final answer
    x = 4,120.84

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.