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Finding the Third Proportional to 28,202 and 66,810

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Solution

The third proportional to 28,202 and 66,810 is: 158,271.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202 : 66,810 = 66,810 : x
  2. Step 2: Convert to fraction form
    28,202/66,810 = 66,810/x
  3. Step 3: Cross multiply
    28,202x = 66,810 × 66,810
  4. Step 4: Simplify right side
    28,202x = 4,463,576,100
  5. Step 5: Solve for x
    x = 4,463,576,100/28,202
  6. Step 6: Final answer
    x = 158,271.62

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.