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Finding the Third Proportional to 7,215.75 and 14,792.63

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Solution

The third proportional to 7,215.75 and 14,792.63 is: 30,325.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.75 : 14,792.63 = 14,792.63 : x
  2. Step 2: Convert to fraction form
    7,215.75/14,792.63 = 14,792.63/x
  3. Step 3: Cross multiply
    7,215.75x = 14,792.63 × 14,792.63
  4. Step 4: Simplify right side
    7,215.75x = 218,821,754.39
  5. Step 5: Solve for x
    x = 218,821,754.39/7,215.75
  6. Step 6: Final answer
    x = 30,325.57

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.