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Finding the Third Proportional to 20,800 and 48,560

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Solution

The third proportional to 20,800 and 48,560 is: 113,368.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800 : 48,560 = 48,560 : x
  2. Step 2: Convert to fraction form
    20,800/48,560 = 48,560/x
  3. Step 3: Cross multiply
    20,800x = 48,560 × 48,560
  4. Step 4: Simplify right side
    20,800x = 2,358,073,600
  5. Step 5: Solve for x
    x = 2,358,073,600/20,800
  6. Step 6: Final answer
    x = 113,368.92

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.