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Finding the Fourth Proportional to 18,336.26, 27,507.28 and 7,243.01

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Solution

The fourth proportional to 18,336.26, 27,507.28 and 7,243.01 is: 10,865.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.26 : 27,507.28 = 7,243.01 : x
  2. Step 2: Convert to fraction form
    18,336.26/27,507.28 = 7,243.01/x
  3. Step 3: Cross multiply
    18,336.26x = 27,507.28 × 7,243.01
  4. Step 4: Simplify right side
    18,336.26x = 199,235,504.11
  5. Step 5: Solve for x
    x = 199,235,504.11/18,336.26
  6. Step 6: Final answer
    x = 10,865.66

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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.