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Finding the Fourth Proportional to 18,403.91, 27,603.11 and 5,922.28

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Solution

The fourth proportional to 18,403.91, 27,603.11 and 5,922.28 is: 8,882.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.91 : 27,603.11 = 5,922.28 : x
  2. Step 2: Convert to fraction form
    18,403.91/27,603.11 = 5,922.28/x
  3. Step 3: Cross multiply
    18,403.91x = 27,603.11 × 5,922.28
  4. Step 4: Simplify right side
    18,403.91x = 163,473,395.60
  5. Step 5: Solve for x
    x = 163,473,395.60/18,403.91
  6. Step 6: Final answer
    x = 8,882.54

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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.