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Finding the Third Proportional to 13,791 and 30,498

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Solution

The third proportional to 13,791 and 30,498 is: 67,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791 : 30,498 = 30,498 : x
  2. Step 2: Convert to fraction form
    13,791/30,498 = 30,498/x
  3. Step 3: Cross multiply
    13,791x = 30,498 × 30,498
  4. Step 4: Simplify right side
    13,791x = 930,128,004
  5. Step 5: Solve for x
    x = 930,128,004/13,791
  6. Step 6: Final answer
    x = 67,444.57

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.