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Finding the Third Proportional to 29,021 and 63,580

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Solution

The third proportional to 29,021 and 63,580 is: 139,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,021 : 63,580 = 63,580 : x
  2. Step 2: Convert to fraction form
    29,021/63,580 = 63,580/x
  3. Step 3: Cross multiply
    29,021x = 63,580 × 63,580
  4. Step 4: Simplify right side
    29,021x = 4,042,416,400
  5. Step 5: Solve for x
    x = 4,042,416,400/29,021
  6. Step 6: Final answer
    x = 139,292.80

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.