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Finding the Third Proportional to 1,559.81 and 3,660.75

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Solution

The third proportional to 1,559.81 and 3,660.75 is: 8,591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559.81 : 3,660.75 = 3,660.75 : x
  2. Step 2: Convert to fraction form
    1,559.81/3,660.75 = 3,660.75/x
  3. Step 3: Cross multiply
    1,559.81x = 3,660.75 × 3,660.75
  4. Step 4: Simplify right side
    1,559.81x = 13,401,090.56
  5. Step 5: Solve for x
    x = 13,401,090.56/1,559.81
  6. Step 6: Final answer
    x = 8,591.48

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.