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Finding the Fourth Proportional to 27,321.30, 40,957.65 and 16,216.20

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Solution

The fourth proportional to 27,321.30, 40,957.65 and 16,216.20 is: 24,309.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,321.30 : 40,957.65 = 16,216.20 : x
  2. Step 2: Convert to fraction form
    27,321.30/40,957.65 = 16,216.20/x
  3. Step 3: Cross multiply
    27,321.30x = 40,957.65 × 16,216.20
  4. Step 4: Simplify right side
    27,321.30x = 664,177,443.93
  5. Step 5: Solve for x
    x = 664,177,443.93/27,321.30
  6. Step 6: Final answer
    x = 24,309.88

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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.