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Finding the Fourth Proportional to 73,174.15, 109,748.46 and 20,571.13

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Solution

The fourth proportional to 73,174.15, 109,748.46 and 20,571.13 is: 30,853.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,174.15 : 109,748.46 = 20,571.13 : x
  2. Step 2: Convert to fraction form
    73,174.15/109,748.46 = 20,571.13/x
  3. Step 3: Cross multiply
    73,174.15x = 109,748.46 × 20,571.13
  4. Step 4: Simplify right side
    73,174.15x = 2,257,649,289.22
  5. Step 5: Solve for x
    x = 2,257,649,289.22/73,174.15
  6. Step 6: Final answer
    x = 30,853.10

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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.