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Finding the Third Proportional to 16,220.25 and 21,566.25

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Solution

The third proportional to 16,220.25 and 21,566.25 is: 28,674.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.25 : 21,566.25 = 21,566.25 : x
  2. Step 2: Convert to fraction form
    16,220.25/21,566.25 = 21,566.25/x
  3. Step 3: Cross multiply
    16,220.25x = 21,566.25 × 21,566.25
  4. Step 4: Simplify right side
    16,220.25x = 465,103,139.06
  5. Step 5: Solve for x
    x = 465,103,139.06/16,220.25
  6. Step 6: Final answer
    x = 28,674.23

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.