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Finding the Third Proportional to 48,378.75 and 102,630

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Solution

The third proportional to 48,378.75 and 102,630 is: 217,717.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,378.75 : 102,630 = 102,630 : x
  2. Step 2: Convert to fraction form
    48,378.75/102,630 = 102,630/x
  3. Step 3: Cross multiply
    48,378.75x = 102,630 × 102,630
  4. Step 4: Simplify right side
    48,378.75x = 10,532,916,900
  5. Step 5: Solve for x
    x = 10,532,916,900/48,378.75
  6. Step 6: Final answer
    x = 217,717.84

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.