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Finding the Third Proportional to 14,127.50 and 20,759

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Solution

The third proportional to 14,127.50 and 20,759 is: 30,503.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.50 : 20,759 = 20,759 : x
  2. Step 2: Convert to fraction form
    14,127.50/20,759 = 20,759/x
  3. Step 3: Cross multiply
    14,127.50x = 20,759 × 20,759
  4. Step 4: Simplify right side
    14,127.50x = 430,936,081
  5. Step 5: Solve for x
    x = 430,936,081/14,127.50
  6. Step 6: Final answer
    x = 30,503.35

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.