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Finding the Third Proportional to 13,263.75 and 20,590.88

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Solution

The third proportional to 13,263.75 and 20,590.88 is: 31,965.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.75 : 20,590.88 = 20,590.88 : x
  2. Step 2: Convert to fraction form
    13,263.75/20,590.88 = 20,590.88/x
  3. Step 3: Cross multiply
    13,263.75x = 20,590.88 × 20,590.88
  4. Step 4: Simplify right side
    13,263.75x = 423,984,133.27
  5. Step 5: Solve for x
    x = 423,984,133.27/13,263.75
  6. Step 6: Final answer
    x = 31,965.63

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.