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Finding the Third Proportional to 21,543 and 33,102

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Solution

The third proportional to 21,543 and 33,102 is: 50,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,543 : 33,102 = 33,102 : x
  2. Step 2: Convert to fraction form
    21,543/33,102 = 33,102/x
  3. Step 3: Cross multiply
    21,543x = 33,102 × 33,102
  4. Step 4: Simplify right side
    21,543x = 1,095,742,404
  5. Step 5: Solve for x
    x = 1,095,742,404/21,543
  6. Step 6: Final answer
    x = 50,863.04

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.