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Finding the Fourth Proportional to 18,882.48, 28,333.24 and 13,371.24

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Solution

The fourth proportional to 18,882.48, 28,333.24 and 13,371.24 is: 20,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.48 : 28,333.24 = 13,371.24 : x
  2. Step 2: Convert to fraction form
    18,882.48/28,333.24 = 13,371.24/x
  3. Step 3: Cross multiply
    18,882.48x = 28,333.24 × 13,371.24
  4. Step 4: Simplify right side
    18,882.48x = 378,850,552.02
  5. Step 5: Solve for x
    x = 378,850,552.02/18,882.48
  6. Step 6: Final answer
    x = 20,063.60

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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.