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Finding the Third Proportional to 764.13 and 1,665.13

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Solution

The third proportional to 764.13 and 1,665.13 is: 3,628.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    764.13 : 1,665.13 = 1,665.13 : x
  2. Step 2: Convert to fraction form
    764.13/1,665.13 = 1,665.13/x
  3. Step 3: Cross multiply
    764.13x = 1,665.13 × 1,665.13
  4. Step 4: Simplify right side
    764.13x = 2,772,641.27
  5. Step 5: Solve for x
    x = 2,772,641.27/764.13
  6. Step 6: Final answer
    x = 3,628.52

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.