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Finding the Fourth Proportional to 18,232.20, 27,332.10 and 10,828.80

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Solution

The fourth proportional to 18,232.20, 27,332.10 and 10,828.80 is: 16,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,232.20 : 27,332.10 = 10,828.80 : x
  2. Step 2: Convert to fraction form
    18,232.20/27,332.10 = 10,828.80/x
  3. Step 3: Cross multiply
    18,232.20x = 27,332.10 × 10,828.80
  4. Step 4: Simplify right side
    18,232.20x = 295,973,844.48
  5. Step 5: Solve for x
    x = 295,973,844.48/18,232.20
  6. Step 6: Final answer
    x = 16,233.58

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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.