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Finding the Third Proportional to 7,180.50 and 15,015

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Solution

The third proportional to 7,180.50 and 15,015 is: 31,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.50 : 15,015 = 15,015 : x
  2. Step 2: Convert to fraction form
    7,180.50/15,015 = 15,015/x
  3. Step 3: Cross multiply
    7,180.50x = 15,015 × 15,015
  4. Step 4: Simplify right side
    7,180.50x = 225,450,225
  5. Step 5: Solve for x
    x = 225,450,225/7,180.50
  6. Step 6: Final answer
    x = 31,397.57

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.