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Finding the Fourth Proportional to 18,329.28, 27,493.92 and 10,533.12

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Solution

The fourth proportional to 18,329.28, 27,493.92 and 10,533.12 is: 15,799.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.28 : 27,493.92 = 10,533.12 : x
  2. Step 2: Convert to fraction form
    18,329.28/27,493.92 = 10,533.12/x
  3. Step 3: Cross multiply
    18,329.28x = 27,493.92 × 10,533.12
  4. Step 4: Simplify right side
    18,329.28x = 289,596,758.63
  5. Step 5: Solve for x
    x = 289,596,758.63/18,329.28
  6. Step 6: Final answer
    x = 15,799.68

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Similar ratio
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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.