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Finding the Third Proportional to 40,490 and 61,302

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Solution

The third proportional to 40,490 and 61,302 is: 92,811.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,490 : 61,302 = 61,302 : x
  2. Step 2: Convert to fraction form
    40,490/61,302 = 61,302/x
  3. Step 3: Cross multiply
    40,490x = 61,302 × 61,302
  4. Step 4: Simplify right side
    40,490x = 3,757,935,204
  5. Step 5: Solve for x
    x = 3,757,935,204/40,490
  6. Step 6: Final answer
    x = 92,811.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.