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Finding the Third Proportional to 13,423.50 and 18,666

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Solution

The third proportional to 13,423.50 and 18,666 is: 25,955.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.50 : 18,666 = 18,666 : x
  2. Step 2: Convert to fraction form
    13,423.50/18,666 = 18,666/x
  3. Step 3: Cross multiply
    13,423.50x = 18,666 × 18,666
  4. Step 4: Simplify right side
    13,423.50x = 348,419,556
  5. Step 5: Solve for x
    x = 348,419,556/13,423.50
  6. Step 6: Final answer
    x = 25,955.94

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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.