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Finding the Third Proportional to 16,570 and 18,226

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Solution

The third proportional to 16,570 and 18,226 is: 20,047.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,570 : 18,226 = 18,226 : x
  2. Step 2: Convert to fraction form
    16,570/18,226 = 18,226/x
  3. Step 3: Cross multiply
    16,570x = 18,226 × 18,226
  4. Step 4: Simplify right side
    16,570x = 332,187,076
  5. Step 5: Solve for x
    x = 332,187,076/16,570
  6. Step 6: Final answer
    x = 20,047.50

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.