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Finding the Fourth Proportional to 16,793.12, 25,189.68 and 6,921.56

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Solution

The fourth proportional to 16,793.12, 25,189.68 and 6,921.56 is: 10,382.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,793.12 : 25,189.68 = 6,921.56 : x
  2. Step 2: Convert to fraction form
    16,793.12/25,189.68 = 6,921.56/x
  3. Step 3: Cross multiply
    16,793.12x = 25,189.68 × 6,921.56
  4. Step 4: Simplify right side
    16,793.12x = 174,351,881.50
  5. Step 5: Solve for x
    x = 174,351,881.50/16,793.12
  6. Step 6: Final answer
    x = 10,382.34

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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.