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Finding the Third Proportional to 18,531.25 and 28,664.25

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Solution

The third proportional to 18,531.25 and 28,664.25 is: 44,338.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.25 : 28,664.25 = 28,664.25 : x
  2. Step 2: Convert to fraction form
    18,531.25/28,664.25 = 28,664.25/x
  3. Step 3: Cross multiply
    18,531.25x = 28,664.25 × 28,664.25
  4. Step 4: Simplify right side
    18,531.25x = 821,639,228.06
  5. Step 5: Solve for x
    x = 821,639,228.06/18,531.25
  6. Step 6: Final answer
    x = 44,338.04

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.