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Finding the Third Proportional to 30,372 and 41,400

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Solution

The third proportional to 30,372 and 41,400 is: 56,432.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372 : 41,400 = 41,400 : x
  2. Step 2: Convert to fraction form
    30,372/41,400 = 41,400/x
  3. Step 3: Cross multiply
    30,372x = 41,400 × 41,400
  4. Step 4: Simplify right side
    30,372x = 1,713,960,000
  5. Step 5: Solve for x
    x = 1,713,960,000/30,372
  6. Step 6: Final answer
    x = 56,432.24

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.