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Finding the Third Proportional to 1,359.19 and 2,092.78

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Solution

The third proportional to 1,359.19 and 2,092.78 is: 3,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359.19 : 2,092.78 = 2,092.78 : x
  2. Step 2: Convert to fraction form
    1,359.19/2,092.78 = 2,092.78/x
  3. Step 3: Cross multiply
    1,359.19x = 2,092.78 × 2,092.78
  4. Step 4: Simplify right side
    1,359.19x = 4,379,733.36
  5. Step 5: Solve for x
    x = 4,379,733.36/1,359.19
  6. Step 6: Final answer
    x = 3,222.32

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.