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Finding the Third Proportional to 21,258 and 33,102

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Solution

The third proportional to 21,258 and 33,102 is: 51,544.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258 : 33,102 = 33,102 : x
  2. Step 2: Convert to fraction form
    21,258/33,102 = 33,102/x
  3. Step 3: Cross multiply
    21,258x = 33,102 × 33,102
  4. Step 4: Simplify right side
    21,258x = 1,095,742,404
  5. Step 5: Solve for x
    x = 1,095,742,404/21,258
  6. Step 6: Final answer
    x = 51,544.94

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.