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Finding the Third Proportional to 12,004 and 18,386

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Solution

The third proportional to 12,004 and 18,386 is: 28,161.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,004 : 18,386 = 18,386 : x
  2. Step 2: Convert to fraction form
    12,004/18,386 = 18,386/x
  3. Step 3: Cross multiply
    12,004x = 18,386 × 18,386
  4. Step 4: Simplify right side
    12,004x = 338,044,996
  5. Step 5: Solve for x
    x = 338,044,996/12,004
  6. Step 6: Final answer
    x = 28,161.03

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.