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Finding the Third Proportional to 15,922 and 17,074

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Solution

The third proportional to 15,922 and 17,074 is: 18,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922 : 17,074 = 17,074 : x
  2. Step 2: Convert to fraction form
    15,922/17,074 = 17,074/x
  3. Step 3: Cross multiply
    15,922x = 17,074 × 17,074
  4. Step 4: Simplify right side
    15,922x = 291,521,476
  5. Step 5: Solve for x
    x = 291,521,476/15,922
  6. Step 6: Final answer
    x = 18,309.35

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.