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Finding the Fourth Proportional to 20,518.99, 30,743.11 and 16,025.11

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Solution

The fourth proportional to 20,518.99, 30,743.11 and 16,025.11 is: 24,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518.99 : 30,743.11 = 16,025.11 : x
  2. Step 2: Convert to fraction form
    20,518.99/30,743.11 = 16,025.11/x
  3. Step 3: Cross multiply
    20,518.99x = 30,743.11 × 16,025.11
  4. Step 4: Simplify right side
    20,518.99x = 492,661,719.49
  5. Step 5: Solve for x
    x = 492,661,719.49/20,518.99
  6. Step 6: Final answer
    x = 24,010.04

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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.