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Finding the Third Proportional to 13,425 and 30,331

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Solution

The third proportional to 13,425 and 30,331 is: 68,526.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425 : 30,331 = 30,331 : x
  2. Step 2: Convert to fraction form
    13,425/30,331 = 30,331/x
  3. Step 3: Cross multiply
    13,425x = 30,331 × 30,331
  4. Step 4: Simplify right side
    13,425x = 919,969,561
  5. Step 5: Solve for x
    x = 919,969,561/13,425
  6. Step 6: Final answer
    x = 68,526.60

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.