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Finding the Fourth Proportional to 20,475.96, 30,713.94 and 7,332.09

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Solution

The fourth proportional to 20,475.96, 30,713.94 and 7,332.09 is: 10,998.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475.96 : 30,713.94 = 7,332.09 : x
  2. Step 2: Convert to fraction form
    20,475.96/30,713.94 = 7,332.09/x
  3. Step 3: Cross multiply
    20,475.96x = 30,713.94 × 7,332.09
  4. Step 4: Simplify right side
    20,475.96x = 225,197,372.33
  5. Step 5: Solve for x
    x = 225,197,372.33/20,475.96
  6. Step 6: Final answer
    x = 10,998.14

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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.