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Finding the Third Proportional to 697.68 and 1,503.56

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Solution

The third proportional to 697.68 and 1,503.56 is: 3,240.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.68 : 1,503.56 = 1,503.56 : x
  2. Step 2: Convert to fraction form
    697.68/1,503.56 = 1,503.56/x
  3. Step 3: Cross multiply
    697.68x = 1,503.56 × 1,503.56
  4. Step 4: Simplify right side
    697.68x = 2,260,700.19
  5. Step 5: Solve for x
    x = 2,260,700.19/697.68
  6. Step 6: Final answer
    x = 3,240.33

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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.