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Finding the Third Proportional to 42,040 and 91,536

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Solution

The third proportional to 42,040 and 91,536 is: 199,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,040 : 91,536 = 91,536 : x
  2. Step 2: Convert to fraction form
    42,040/91,536 = 91,536/x
  3. Step 3: Cross multiply
    42,040x = 91,536 × 91,536
  4. Step 4: Simplify right side
    42,040x = 8,378,839,296
  5. Step 5: Solve for x
    x = 8,378,839,296/42,040
  6. Step 6: Final answer
    x = 199,306.36

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.