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Finding the Third Proportional to 42,796.94 and 66,531.44

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Solution

The third proportional to 42,796.94 and 66,531.44 is: 103,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,796.94 : 66,531.44 = 66,531.44 : x
  2. Step 2: Convert to fraction form
    42,796.94/66,531.44 = 66,531.44/x
  3. Step 3: Cross multiply
    42,796.94x = 66,531.44 × 66,531.44
  4. Step 4: Simplify right side
    42,796.94x = 4,426,432,175.82
  5. Step 5: Solve for x
    x = 4,426,432,175.82/42,796.94
  6. Step 6: Final answer
    x = 103,428.71

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.