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Finding the Third Proportional to 31,104 and 48,600

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Solution

The third proportional to 31,104 and 48,600 is: 75,937.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,104 : 48,600 = 48,600 : x
  2. Step 2: Convert to fraction form
    31,104/48,600 = 48,600/x
  3. Step 3: Cross multiply
    31,104x = 48,600 × 48,600
  4. Step 4: Simplify right side
    31,104x = 2,361,960,000
  5. Step 5: Solve for x
    x = 2,361,960,000/31,104
  6. Step 6: Final answer
    x = 75,937.50

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.