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Finding the Fourth Proportional to 18,195.48, 27,293.22 and 5,716.48

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Solution

The fourth proportional to 18,195.48, 27,293.22 and 5,716.48 is: 8,574.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195.48 : 27,293.22 = 5,716.48 : x
  2. Step 2: Convert to fraction form
    18,195.48/27,293.22 = 5,716.48/x
  3. Step 3: Cross multiply
    18,195.48x = 27,293.22 × 5,716.48
  4. Step 4: Simplify right side
    18,195.48x = 156,021,146.27
  5. Step 5: Solve for x
    x = 156,021,146.27/18,195.48
  6. Step 6: Final answer
    x = 8,574.72

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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.