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Finding the Third Proportional to 708 and 1,094

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Solution

The third proportional to 708 and 1,094 is: 1,690.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    708 : 1,094 = 1,094 : x
  2. Step 2: Convert to fraction form
    708/1,094 = 1,094/x
  3. Step 3: Cross multiply
    708x = 1,094 × 1,094
  4. Step 4: Simplify right side
    708x = 1,196,836
  5. Step 5: Solve for x
    x = 1,196,836/708
  6. Step 6: Final answer
    x = 1,690.45

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.