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Finding the Third Proportional to 1,921.22 and 4,533.47

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Solution

The third proportional to 1,921.22 and 4,533.47 is: 10,697.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.22 : 4,533.47 = 4,533.47 : x
  2. Step 2: Convert to fraction form
    1,921.22/4,533.47 = 4,533.47/x
  3. Step 3: Cross multiply
    1,921.22x = 4,533.47 × 4,533.47
  4. Step 4: Simplify right side
    1,921.22x = 20,552,338.91
  5. Step 5: Solve for x
    x = 20,552,338.91/1,921.22
  6. Step 6: Final answer
    x = 10,697.55

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.