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Finding the Fourth Proportional to 16,007.80, 22,091.88 and 8,935.60

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Solution

The fourth proportional to 16,007.80, 22,091.88 and 8,935.60 is: 12,331.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,007.80 : 22,091.88 = 8,935.60 : x
  2. Step 2: Convert to fraction form
    16,007.80/22,091.88 = 8,935.60/x
  3. Step 3: Cross multiply
    16,007.80x = 22,091.88 × 8,935.60
  4. Step 4: Simplify right side
    16,007.80x = 197,404,202.93
  5. Step 5: Solve for x
    x = 197,404,202.93/16,007.80
  6. Step 6: Final answer
    x = 12,331.75

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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.