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Finding the Third Proportional to 855.75 and 1,337.06

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Solution

The third proportional to 855.75 and 1,337.06 is: 2,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    855.75 : 1,337.06 = 1,337.06 : x
  2. Step 2: Convert to fraction form
    855.75/1,337.06 = 1,337.06/x
  3. Step 3: Cross multiply
    855.75x = 1,337.06 × 1,337.06
  4. Step 4: Simplify right side
    855.75x = 1,787,736.13
  5. Step 5: Solve for x
    x = 1,787,736.13/855.75
  6. Step 6: Final answer
    x = 2,089.09

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.