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Finding the Third Proportional to 13,621 and 29,693

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Solution

The third proportional to 13,621 and 29,693 is: 64,729.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621 : 29,693 = 29,693 : x
  2. Step 2: Convert to fraction form
    13,621/29,693 = 29,693/x
  3. Step 3: Cross multiply
    13,621x = 29,693 × 29,693
  4. Step 4: Simplify right side
    13,621x = 881,674,249
  5. Step 5: Solve for x
    x = 881,674,249/13,621
  6. Step 6: Final answer
    x = 64,729.04

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.