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Finding the Third Proportional to 651.38 and 1,434.38

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Solution

The third proportional to 651.38 and 1,434.38 is: 3,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.38 : 1,434.38 = 1,434.38 : x
  2. Step 2: Convert to fraction form
    651.38/1,434.38 = 1,434.38/x
  3. Step 3: Cross multiply
    651.38x = 1,434.38 × 1,434.38
  4. Step 4: Simplify right side
    651.38x = 2,057,431.64
  5. Step 5: Solve for x
    x = 2,057,431.64/651.38
  6. Step 6: Final answer
    x = 3,158.60

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.