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Finding the Third Proportional to 18,624 and 26,400

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Solution

The third proportional to 18,624 and 26,400 is: 37,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624 : 26,400 = 26,400 : x
  2. Step 2: Convert to fraction form
    18,624/26,400 = 26,400/x
  3. Step 3: Cross multiply
    18,624x = 26,400 × 26,400
  4. Step 4: Simplify right side
    18,624x = 696,960,000
  5. Step 5: Solve for x
    x = 696,960,000/18,624
  6. Step 6: Final answer
    x = 37,422.68

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.