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Finding the Third Proportional to 18,007.50 and 28,767

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Solution

The third proportional to 18,007.50 and 28,767 is: 45,955.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.50 : 28,767 = 28,767 : x
  2. Step 2: Convert to fraction form
    18,007.50/28,767 = 28,767/x
  3. Step 3: Cross multiply
    18,007.50x = 28,767 × 28,767
  4. Step 4: Simplify right side
    18,007.50x = 827,540,289
  5. Step 5: Solve for x
    x = 827,540,289/18,007.50
  6. Step 6: Final answer
    x = 45,955.31

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.