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Finding the Third Proportional to 13,215 and 29,022

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Solution

The third proportional to 13,215 and 29,022 is: 63,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215 : 29,022 = 29,022 : x
  2. Step 2: Convert to fraction form
    13,215/29,022 = 29,022/x
  3. Step 3: Cross multiply
    13,215x = 29,022 × 29,022
  4. Step 4: Simplify right side
    13,215x = 842,276,484
  5. Step 5: Solve for x
    x = 842,276,484/13,215
  6. Step 6: Final answer
    x = 63,736.40

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.