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Finding the Third Proportional to 21,628.50 and 46,929

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Solution

The third proportional to 21,628.50 and 46,929 is: 101,825.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628.50 : 46,929 = 46,929 : x
  2. Step 2: Convert to fraction form
    21,628.50/46,929 = 46,929/x
  3. Step 3: Cross multiply
    21,628.50x = 46,929 × 46,929
  4. Step 4: Simplify right side
    21,628.50x = 2,202,331,041
  5. Step 5: Solve for x
    x = 2,202,331,041/21,628.50
  6. Step 6: Final answer
    x = 101,825.42

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.