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Finding the Third Proportional to 37,620 and 55,246

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Solution

The third proportional to 37,620 and 55,246 is: 81,130.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,620 : 55,246 = 55,246 : x
  2. Step 2: Convert to fraction form
    37,620/55,246 = 55,246/x
  3. Step 3: Cross multiply
    37,620x = 55,246 × 55,246
  4. Step 4: Simplify right side
    37,620x = 3,052,120,516
  5. Step 5: Solve for x
    x = 3,052,120,516/37,620
  6. Step 6: Final answer
    x = 81,130.26

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.