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Finding the Third Proportional to 14,122.50 and 20,751.75

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Solution

The third proportional to 14,122.50 and 20,751.75 is: 30,492.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.50 : 20,751.75 = 20,751.75 : x
  2. Step 2: Convert to fraction form
    14,122.50/20,751.75 = 20,751.75/x
  3. Step 3: Cross multiply
    14,122.50x = 20,751.75 × 20,751.75
  4. Step 4: Simplify right side
    14,122.50x = 430,635,128.06
  5. Step 5: Solve for x
    x = 430,635,128.06/14,122.50
  6. Step 6: Final answer
    x = 30,492.84

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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.