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Finding the Third Proportional to 706 and 1,039

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Solution

The third proportional to 706 and 1,039 is: 1,529.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    706 : 1,039 = 1,039 : x
  2. Step 2: Convert to fraction form
    706/1,039 = 1,039/x
  3. Step 3: Cross multiply
    706x = 1,039 × 1,039
  4. Step 4: Simplify right side
    706x = 1,079,521
  5. Step 5: Solve for x
    x = 1,079,521/706
  6. Step 6: Final answer
    x = 1,529.07

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.