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Finding the Fourth Proportional to 18,384.54, 27,583.05 and 8,003.10

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Solution

The fourth proportional to 18,384.54, 27,583.05 and 8,003.10 is: 12,007.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.54 : 27,583.05 = 8,003.10 : x
  2. Step 2: Convert to fraction form
    18,384.54/27,583.05 = 8,003.10/x
  3. Step 3: Cross multiply
    18,384.54x = 27,583.05 × 8,003.10
  4. Step 4: Simplify right side
    18,384.54x = 220,749,907.46
  5. Step 5: Solve for x
    x = 220,749,907.46/18,384.54
  6. Step 6: Final answer
    x = 12,007.37

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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.