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Finding the Third Proportional to 84,402 and 133,650

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Solution

The third proportional to 84,402 and 133,650 is: 211,633.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,402 : 133,650 = 133,650 : x
  2. Step 2: Convert to fraction form
    84,402/133,650 = 133,650/x
  3. Step 3: Cross multiply
    84,402x = 133,650 × 133,650
  4. Step 4: Simplify right side
    84,402x = 17,862,322,500
  5. Step 5: Solve for x
    x = 17,862,322,500/84,402
  6. Step 6: Final answer
    x = 211,633.88

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.