Home / 18,520.12-25,556.22-10,562.20

Finding the Fourth Proportional to 18,520.12, 25,556.22 and 10,562.20

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Solution

The fourth proportional to 18,520.12, 25,556.22 and 10,562.20 is: 14,574.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.12 : 25,556.22 = 10,562.20 : x
  2. Step 2: Convert to fraction form
    18,520.12/25,556.22 = 10,562.20/x
  3. Step 3: Cross multiply
    18,520.12x = 25,556.22 × 10,562.20
  4. Step 4: Simplify right side
    18,520.12x = 269,929,906.88
  5. Step 5: Solve for x
    x = 269,929,906.88/18,520.12
  6. Step 6: Final answer
    x = 14,574.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.