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Finding the Third Proportional to 855.56 and 1,166.34

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Solution

The third proportional to 855.56 and 1,166.34 is: 1,590.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    855.56 : 1,166.34 = 1,166.34 : x
  2. Step 2: Convert to fraction form
    855.56/1,166.34 = 1,166.34/x
  3. Step 3: Cross multiply
    855.56x = 1,166.34 × 1,166.34
  4. Step 4: Simplify right side
    855.56x = 1,360,357.74
  5. Step 5: Solve for x
    x = 1,360,357.74/855.56
  6. Step 6: Final answer
    x = 1,590.02

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.