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Finding the Fourth Proportional to 20,596.67, 30,900.81 and 5,805.72

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Solution

The fourth proportional to 20,596.67, 30,900.81 and 5,805.72 is: 8,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.67 : 30,900.81 = 5,805.72 : x
  2. Step 2: Convert to fraction form
    20,596.67/30,900.81 = 5,805.72/x
  3. Step 3: Cross multiply
    20,596.67x = 30,900.81 × 5,805.72
  4. Step 4: Simplify right side
    20,596.67x = 179,401,472.40
  5. Step 5: Solve for x
    x = 179,401,472.40/20,596.67
  6. Step 6: Final answer
    x = 8,710.22

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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.