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Finding the Third Proportional to 1,812.75 and 3,591

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Solution

The third proportional to 1,812.75 and 3,591 is: 7,113.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.75 : 3,591 = 3,591 : x
  2. Step 2: Convert to fraction form
    1,812.75/3,591 = 3,591/x
  3. Step 3: Cross multiply
    1,812.75x = 3,591 × 3,591
  4. Step 4: Simplify right side
    1,812.75x = 12,895,281
  5. Step 5: Solve for x
    x = 12,895,281/1,812.75
  6. Step 6: Final answer
    x = 7,113.66

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.