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Finding the Fourth Proportional to 20,360.97, 30,680.16 and 16,744.22

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Solution

The fourth proportional to 20,360.97, 30,680.16 and 16,744.22 is: 25,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.97 : 30,680.16 = 16,744.22 : x
  2. Step 2: Convert to fraction form
    20,360.97/30,680.16 = 16,744.22/x
  3. Step 3: Cross multiply
    20,360.97x = 30,680.16 × 16,744.22
  4. Step 4: Simplify right side
    20,360.97x = 513,715,195.27
  5. Step 5: Solve for x
    x = 513,715,195.27/20,360.97
  6. Step 6: Final answer
    x = 25,230.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.