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Finding the Third Proportional to 2,803.78 and 4,579.03

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Solution

The third proportional to 2,803.78 and 4,579.03 is: 7,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.78 : 4,579.03 = 4,579.03 : x
  2. Step 2: Convert to fraction form
    2,803.78/4,579.03 = 4,579.03/x
  3. Step 3: Cross multiply
    2,803.78x = 4,579.03 × 4,579.03
  4. Step 4: Simplify right side
    2,803.78x = 20,967,527.19
  5. Step 5: Solve for x
    x = 20,967,527.19/2,803.78
  6. Step 6: Final answer
    x = 7,478.30

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.