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Finding the Third Proportional to 21,356 and 49,888

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Solution

The third proportional to 21,356 and 49,888 is: 116,539.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,356 : 49,888 = 49,888 : x
  2. Step 2: Convert to fraction form
    21,356/49,888 = 49,888/x
  3. Step 3: Cross multiply
    21,356x = 49,888 × 49,888
  4. Step 4: Simplify right side
    21,356x = 2,488,812,544
  5. Step 5: Solve for x
    x = 2,488,812,544/21,356
  6. Step 6: Final answer
    x = 116,539.27

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.