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Finding the Third Proportional to 13,751.25 and 20,657.25

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Solution

The third proportional to 13,751.25 and 20,657.25 is: 31,031.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.25 : 20,657.25 = 20,657.25 : x
  2. Step 2: Convert to fraction form
    13,751.25/20,657.25 = 20,657.25/x
  3. Step 3: Cross multiply
    13,751.25x = 20,657.25 × 20,657.25
  4. Step 4: Simplify right side
    13,751.25x = 426,721,977.56
  5. Step 5: Solve for x
    x = 426,721,977.56/13,751.25
  6. Step 6: Final answer
    x = 31,031.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.