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Finding the Third Proportional to 19,660 and 29,210

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Solution

The third proportional to 19,660 and 29,210 is: 43,398.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660 : 29,210 = 29,210 : x
  2. Step 2: Convert to fraction form
    19,660/29,210 = 29,210/x
  3. Step 3: Cross multiply
    19,660x = 29,210 × 29,210
  4. Step 4: Simplify right side
    19,660x = 853,224,100
  5. Step 5: Solve for x
    x = 853,224,100/19,660
  6. Step 6: Final answer
    x = 43,398.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.