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Finding the Fourth Proportional to 20,592.63, 30,923.10 and 12,850.65

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Solution

The fourth proportional to 20,592.63, 30,923.10 and 12,850.65 is: 19,297.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.63 : 30,923.10 = 12,850.65 : x
  2. Step 2: Convert to fraction form
    20,592.63/30,923.10 = 12,850.65/x
  3. Step 3: Cross multiply
    20,592.63x = 30,923.10 × 12,850.65
  4. Step 4: Simplify right side
    20,592.63x = 397,381,935.02
  5. Step 5: Solve for x
    x = 397,381,935.02/20,592.63
  6. Step 6: Final answer
    x = 19,297.29

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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.