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Finding the Third Proportional to 1,861.31 and 3,065.34

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Solution

The third proportional to 1,861.31 and 3,065.34 is: 5,048.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.31 : 3,065.34 = 3,065.34 : x
  2. Step 2: Convert to fraction form
    1,861.31/3,065.34 = 3,065.34/x
  3. Step 3: Cross multiply
    1,861.31x = 3,065.34 × 3,065.34
  4. Step 4: Simplify right side
    1,861.31x = 9,396,332.31
  5. Step 5: Solve for x
    x = 9,396,332.31/1,861.31
  6. Step 6: Final answer
    x = 5,048.23

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.