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Finding the Fourth Proportional to 18,313.83, 27,472.77 and 7,228.17

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Solution

The fourth proportional to 18,313.83, 27,472.77 and 7,228.17 is: 10,843.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.83 : 27,472.77 = 7,228.17 : x
  2. Step 2: Convert to fraction form
    18,313.83/27,472.77 = 7,228.17/x
  3. Step 3: Cross multiply
    18,313.83x = 27,472.77 × 7,228.17
  4. Step 4: Simplify right side
    18,313.83x = 198,577,851.93
  5. Step 5: Solve for x
    x = 198,577,851.93/18,313.83
  6. Step 6: Final answer
    x = 10,843.05

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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.