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Finding the Third Proportional to 48,421 and 73,356

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Solution

The third proportional to 48,421 and 73,356 is: 111,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,421 : 73,356 = 73,356 : x
  2. Step 2: Convert to fraction form
    48,421/73,356 = 73,356/x
  3. Step 3: Cross multiply
    48,421x = 73,356 × 73,356
  4. Step 4: Simplify right side
    48,421x = 5,381,102,736
  5. Step 5: Solve for x
    x = 5,381,102,736/48,421
  6. Step 6: Final answer
    x = 111,131.59

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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.