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Finding the Fourth Proportional to 18,553.66, 27,844.29 and 11,543.85

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Solution

The fourth proportional to 18,553.66, 27,844.29 and 11,543.85 is: 17,324.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.66 : 27,844.29 = 11,543.85 : x
  2. Step 2: Convert to fraction form
    18,553.66/27,844.29 = 11,543.85/x
  3. Step 3: Cross multiply
    18,553.66x = 27,844.29 × 11,543.85
  4. Step 4: Simplify right side
    18,553.66x = 321,430,307.12
  5. Step 5: Solve for x
    x = 321,430,307.12/18,553.66
  6. Step 6: Final answer
    x = 17,324.36

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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.