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Finding the Third Proportional to 841.50 and 1,759

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Solution

The third proportional to 841.50 and 1,759 is: 3,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    841.50 : 1,759 = 1,759 : x
  2. Step 2: Convert to fraction form
    841.50/1,759 = 1,759/x
  3. Step 3: Cross multiply
    841.50x = 1,759 × 1,759
  4. Step 4: Simplify right side
    841.50x = 3,094,081
  5. Step 5: Solve for x
    x = 3,094,081/841.50
  6. Step 6: Final answer
    x = 3,676.86

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.