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Finding the Fourth Proportional to 18,292.20, 27,467.10 and 10,516.20

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Solution

The fourth proportional to 18,292.20, 27,467.10 and 10,516.20 is: 15,790.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.20 : 27,467.10 = 10,516.20 : x
  2. Step 2: Convert to fraction form
    18,292.20/27,467.10 = 10,516.20/x
  3. Step 3: Cross multiply
    18,292.20x = 27,467.10 × 10,516.20
  4. Step 4: Simplify right side
    18,292.20x = 288,849,517.02
  5. Step 5: Solve for x
    x = 288,849,517.02/18,292.20
  6. Step 6: Final answer
    x = 15,790.86

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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.