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Finding the Third Proportional to 758 and 1,207

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Solution

The third proportional to 758 and 1,207 is: 1,921.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    758 : 1,207 = 1,207 : x
  2. Step 2: Convert to fraction form
    758/1,207 = 1,207/x
  3. Step 3: Cross multiply
    758x = 1,207 × 1,207
  4. Step 4: Simplify right side
    758x = 1,456,849
  5. Step 5: Solve for x
    x = 1,456,849/758
  6. Step 6: Final answer
    x = 1,921.96

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.