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Finding the Third Proportional to 15,368 and 20,492

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Solution

The third proportional to 15,368 and 20,492 is: 27,324.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,368 : 20,492 = 20,492 : x
  2. Step 2: Convert to fraction form
    15,368/20,492 = 20,492/x
  3. Step 3: Cross multiply
    15,368x = 20,492 × 20,492
  4. Step 4: Simplify right side
    15,368x = 419,922,064
  5. Step 5: Solve for x
    x = 419,922,064/15,368
  6. Step 6: Final answer
    x = 27,324.44

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.