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Finding the Third Proportional to 650.75 and 1,225.75

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Solution

The third proportional to 650.75 and 1,225.75 is: 2,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.75 : 1,225.75 = 1,225.75 : x
  2. Step 2: Convert to fraction form
    650.75/1,225.75 = 1,225.75/x
  3. Step 3: Cross multiply
    650.75x = 1,225.75 × 1,225.75
  4. Step 4: Simplify right side
    650.75x = 1,502,463.06
  5. Step 5: Solve for x
    x = 1,502,463.06/650.75
  6. Step 6: Final answer
    x = 2,308.82

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.