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Finding the Third Proportional to 20,376 and 29,070

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Solution

The third proportional to 20,376 and 29,070 is: 41,473.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,376 : 29,070 = 29,070 : x
  2. Step 2: Convert to fraction form
    20,376/29,070 = 29,070/x
  3. Step 3: Cross multiply
    20,376x = 29,070 × 29,070
  4. Step 4: Simplify right side
    20,376x = 845,064,900
  5. Step 5: Solve for x
    x = 845,064,900/20,376
  6. Step 6: Final answer
    x = 41,473.54

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.