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Finding the Fourth Proportional to 18,662.70, 27,966.60 and 10,767.60

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Solution

The fourth proportional to 18,662.70, 27,966.60 and 10,767.60 is: 16,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,662.70 : 27,966.60 = 10,767.60 : x
  2. Step 2: Convert to fraction form
    18,662.70/27,966.60 = 10,767.60/x
  3. Step 3: Cross multiply
    18,662.70x = 27,966.60 × 10,767.60
  4. Step 4: Simplify right side
    18,662.70x = 301,133,162.16
  5. Step 5: Solve for x
    x = 301,133,162.16/18,662.70
  6. Step 6: Final answer
    x = 16,135.56

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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.