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Finding the Third Proportional to 11,018 and 15,706

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Solution

The third proportional to 11,018 and 15,706 is: 22,388.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,018 : 15,706 = 15,706 : x
  2. Step 2: Convert to fraction form
    11,018/15,706 = 15,706/x
  3. Step 3: Cross multiply
    11,018x = 15,706 × 15,706
  4. Step 4: Simplify right side
    11,018x = 246,678,436
  5. Step 5: Solve for x
    x = 246,678,436/11,018
  6. Step 6: Final answer
    x = 22,388.68

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.