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Finding the Third Proportional to 8,700.75 and 13,255.13

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Solution

The third proportional to 8,700.75 and 13,255.13 is: 20,193.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.75 : 13,255.13 = 13,255.13 : x
  2. Step 2: Convert to fraction form
    8,700.75/13,255.13 = 13,255.13/x
  3. Step 3: Cross multiply
    8,700.75x = 13,255.13 × 13,255.13
  4. Step 4: Simplify right side
    8,700.75x = 175,698,338.77
  5. Step 5: Solve for x
    x = 175,698,338.77/8,700.75
  6. Step 6: Final answer
    x = 20,193.47

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.