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Finding the Third Proportional to 11,356 and 15,754

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Solution

The third proportional to 11,356 and 15,754 is: 21,855.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356 : 15,754 = 15,754 : x
  2. Step 2: Convert to fraction form
    11,356/15,754 = 15,754/x
  3. Step 3: Cross multiply
    11,356x = 15,754 × 15,754
  4. Step 4: Simplify right side
    11,356x = 248,188,516
  5. Step 5: Solve for x
    x = 248,188,516/11,356
  6. Step 6: Final answer
    x = 21,855.28

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.