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Finding the Third Proportional to 38,784 and 80,448

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Solution

The third proportional to 38,784 and 80,448 is: 166,869.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,784 : 80,448 = 80,448 : x
  2. Step 2: Convert to fraction form
    38,784/80,448 = 80,448/x
  3. Step 3: Cross multiply
    38,784x = 80,448 × 80,448
  4. Step 4: Simplify right side
    38,784x = 6,471,880,704
  5. Step 5: Solve for x
    x = 6,471,880,704/38,784
  6. Step 6: Final answer
    x = 166,869.86

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.