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Finding the Third Proportional to 45,621 and 68,248

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Solution

The third proportional to 45,621 and 68,248 is: 102,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,621 : 68,248 = 68,248 : x
  2. Step 2: Convert to fraction form
    45,621/68,248 = 68,248/x
  3. Step 3: Cross multiply
    45,621x = 68,248 × 68,248
  4. Step 4: Simplify right side
    45,621x = 4,657,789,504
  5. Step 5: Solve for x
    x = 4,657,789,504/45,621
  6. Step 6: Final answer
    x = 102,097.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.