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Finding the Third Proportional to 30,891.38 and 66,592.13

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Solution

The third proportional to 30,891.38 and 66,592.13 is: 143,551.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891.38 : 66,592.13 = 66,592.13 : x
  2. Step 2: Convert to fraction form
    30,891.38/66,592.13 = 66,592.13/x
  3. Step 3: Cross multiply
    30,891.38x = 66,592.13 × 66,592.13
  4. Step 4: Simplify right side
    30,891.38x = 4,434,511,112.02
  5. Step 5: Solve for x
    x = 4,434,511,112.02/30,891.38
  6. Step 6: Final answer
    x = 143,551.76

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.