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Finding the Third Proportional to 40,604 and 61,420

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Solution

The third proportional to 40,604 and 61,420 is: 92,907.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,604 : 61,420 = 61,420 : x
  2. Step 2: Convert to fraction form
    40,604/61,420 = 61,420/x
  3. Step 3: Cross multiply
    40,604x = 61,420 × 61,420
  4. Step 4: Simplify right side
    40,604x = 3,772,416,400
  5. Step 5: Solve for x
    x = 3,772,416,400/40,604
  6. Step 6: Final answer
    x = 92,907.51

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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.