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Finding the Fourth Proportional to 18,003.20, 27,007.07 and 6,159.26

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Solution

The fourth proportional to 18,003.20, 27,007.07 and 6,159.26 is: 9,239.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.20 : 27,007.07 = 6,159.26 : x
  2. Step 2: Convert to fraction form
    18,003.20/27,007.07 = 6,159.26/x
  3. Step 3: Cross multiply
    18,003.20x = 27,007.07 × 6,159.26
  4. Step 4: Simplify right side
    18,003.20x = 166,343,602.69
  5. Step 5: Solve for x
    x = 166,343,602.69/18,003.20
  6. Step 6: Final answer
    x = 9,239.67

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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.