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Finding the Third Proportional to 749.81 and 1,613.25

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Solution

The third proportional to 749.81 and 1,613.25 is: 3,470.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    749.81 : 1,613.25 = 1,613.25 : x
  2. Step 2: Convert to fraction form
    749.81/1,613.25 = 1,613.25/x
  3. Step 3: Cross multiply
    749.81x = 1,613.25 × 1,613.25
  4. Step 4: Simplify right side
    749.81x = 2,602,575.56
  5. Step 5: Solve for x
    x = 2,602,575.56/749.81
  6. Step 6: Final answer
    x = 3,470.97

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.