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Finding the Third Proportional to 7,221.66 and 15,627.94

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Solution

The third proportional to 7,221.66 and 15,627.94 is: 33,819.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.66 : 15,627.94 = 15,627.94 : x
  2. Step 2: Convert to fraction form
    7,221.66/15,627.94 = 15,627.94/x
  3. Step 3: Cross multiply
    7,221.66x = 15,627.94 × 15,627.94
  4. Step 4: Simplify right side
    7,221.66x = 244,232,430.50
  5. Step 5: Solve for x
    x = 244,232,430.50/7,221.66
  6. Step 6: Final answer
    x = 33,819.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.