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Finding the Third Proportional to 14,806.50 and 31,809

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Solution

The third proportional to 14,806.50 and 31,809 is: 68,335.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,806.50 : 31,809 = 31,809 : x
  2. Step 2: Convert to fraction form
    14,806.50/31,809 = 31,809/x
  3. Step 3: Cross multiply
    14,806.50x = 31,809 × 31,809
  4. Step 4: Simplify right side
    14,806.50x = 1,011,812,481
  5. Step 5: Solve for x
    x = 1,011,812,481/14,806.50
  6. Step 6: Final answer
    x = 68,335.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.