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Finding the Third Proportional to 42,246 and 91,791

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Solution

The third proportional to 42,246 and 91,791 is: 199,441.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,246 : 91,791 = 91,791 : x
  2. Step 2: Convert to fraction form
    42,246/91,791 = 91,791/x
  3. Step 3: Cross multiply
    42,246x = 91,791 × 91,791
  4. Step 4: Simplify right side
    42,246x = 8,425,587,681
  5. Step 5: Solve for x
    x = 8,425,587,681/42,246
  6. Step 6: Final answer
    x = 199,441.08

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.