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Finding the Third Proportional to 18,988.88 and 28,824.75

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Solution

The third proportional to 18,988.88 and 28,824.75 is: 43,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.88 : 28,824.75 = 28,824.75 : x
  2. Step 2: Convert to fraction form
    18,988.88/28,824.75 = 28,824.75/x
  3. Step 3: Cross multiply
    18,988.88x = 28,824.75 × 28,824.75
  4. Step 4: Simplify right side
    18,988.88x = 830,866,212.56
  5. Step 5: Solve for x
    x = 830,866,212.56/18,988.88
  6. Step 6: Final answer
    x = 43,755.42

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.