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Finding the Fourth Proportional to 11,882.19, 17,822.88 and 5,645.19

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Solution

The fourth proportional to 11,882.19, 17,822.88 and 5,645.19 is: 8,467.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,882.19 : 17,822.88 = 5,645.19 : x
  2. Step 2: Convert to fraction form
    11,882.19/17,822.88 = 5,645.19/x
  3. Step 3: Cross multiply
    11,882.19x = 17,822.88 × 5,645.19
  4. Step 4: Simplify right side
    11,882.19x = 100,613,543.95
  5. Step 5: Solve for x
    x = 100,613,543.95/11,882.19
  6. Step 6: Final answer
    x = 8,467.59

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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.