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Finding the Fourth Proportional to 15,957.34, 22,021.86 and 8,884.22

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Solution

The fourth proportional to 15,957.34, 22,021.86 and 8,884.22 is: 12,260.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,957.34 : 22,021.86 = 8,884.22 : x
  2. Step 2: Convert to fraction form
    15,957.34/22,021.86 = 8,884.22/x
  3. Step 3: Cross multiply
    15,957.34x = 22,021.86 × 8,884.22
  4. Step 4: Simplify right side
    15,957.34x = 195,647,049.05
  5. Step 5: Solve for x
    x = 195,647,049.05/15,957.34
  6. Step 6: Final answer
    x = 12,260.63

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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.