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Finding the Fourth Proportional to 18,302.05, 27,453.08 and 7,202.71

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Solution

The fourth proportional to 18,302.05, 27,453.08 and 7,202.71 is: 10,804.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.05 : 27,453.08 = 7,202.71 : x
  2. Step 2: Convert to fraction form
    18,302.05/27,453.08 = 7,202.71/x
  3. Step 3: Cross multiply
    18,302.05x = 27,453.08 × 7,202.71
  4. Step 4: Simplify right side
    18,302.05x = 197,736,573.85
  5. Step 5: Solve for x
    x = 197,736,573.85/18,302.05
  6. Step 6: Final answer
    x = 10,804.07

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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.