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Finding the Fourth Proportional to 18,003.56, 26,993.64 and 7,470.68

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Solution

The fourth proportional to 18,003.56, 26,993.64 and 7,470.68 is: 11,201.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.56 : 26,993.64 = 7,470.68 : x
  2. Step 2: Convert to fraction form
    18,003.56/26,993.64 = 7,470.68/x
  3. Step 3: Cross multiply
    18,003.56x = 26,993.64 × 7,470.68
  4. Step 4: Simplify right side
    18,003.56x = 201,660,846.48
  5. Step 5: Solve for x
    x = 201,660,846.48/18,003.56
  6. Step 6: Final answer
    x = 11,201.17

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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.