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Finding the Third Proportional to 842.63 and 1,843.88

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Solution

The third proportional to 842.63 and 1,843.88 is: 4,034.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    842.63 : 1,843.88 = 1,843.88 : x
  2. Step 2: Convert to fraction form
    842.63/1,843.88 = 1,843.88/x
  3. Step 3: Cross multiply
    842.63x = 1,843.88 × 1,843.88
  4. Step 4: Simplify right side
    842.63x = 3,399,875.02
  5. Step 5: Solve for x
    x = 3,399,875.02/842.63
  6. Step 6: Final answer
    x = 4,034.86

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.