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Finding the Third Proportional to 753.75 and 1,618.03

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Solution

The third proportional to 753.75 and 1,618.03 is: 3,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    753.75 : 1,618.03 = 1,618.03 : x
  2. Step 2: Convert to fraction form
    753.75/1,618.03 = 1,618.03/x
  3. Step 3: Cross multiply
    753.75x = 1,618.03 × 1,618.03
  4. Step 4: Simplify right side
    753.75x = 2,618,025.13
  5. Step 5: Solve for x
    x = 2,618,025.13/753.75
  6. Step 6: Final answer
    x = 3,473.33

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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.