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Finding the Third Proportional to 20,328.75 and 26,970.75

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Solution

The third proportional to 20,328.75 and 26,970.75 is: 35,782.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328.75 : 26,970.75 = 26,970.75 : x
  2. Step 2: Convert to fraction form
    20,328.75/26,970.75 = 26,970.75/x
  3. Step 3: Cross multiply
    20,328.75x = 26,970.75 × 26,970.75
  4. Step 4: Simplify right side
    20,328.75x = 727,421,355.56
  5. Step 5: Solve for x
    x = 727,421,355.56/20,328.75
  6. Step 6: Final answer
    x = 35,782.89

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.