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Finding the Third Proportional to 7,212.38 and 15,503.06

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Solution

The third proportional to 7,212.38 and 15,503.06 is: 33,323.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.38 : 15,503.06 = 15,503.06 : x
  2. Step 2: Convert to fraction form
    7,212.38/15,503.06 = 15,503.06/x
  3. Step 3: Cross multiply
    7,212.38x = 15,503.06 × 15,503.06
  4. Step 4: Simplify right side
    7,212.38x = 240,344,946.88
  5. Step 5: Solve for x
    x = 240,344,946.88/7,212.38
  6. Step 6: Final answer
    x = 33,323.97

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.