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Finding the Third Proportional to 717.19 and 1,667.25

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Solution

The third proportional to 717.19 and 1,667.25 is: 3,875.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.19 : 1,667.25 = 1,667.25 : x
  2. Step 2: Convert to fraction form
    717.19/1,667.25 = 1,667.25/x
  3. Step 3: Cross multiply
    717.19x = 1,667.25 × 1,667.25
  4. Step 4: Simplify right side
    717.19x = 2,779,722.56
  5. Step 5: Solve for x
    x = 2,779,722.56/717.19
  6. Step 6: Final answer
    x = 3,875.87

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.