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Finding the Fourth Proportional to 11,888.18, 17,794.91 and 8,168.66

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Solution

The fourth proportional to 11,888.18, 17,794.91 and 8,168.66 is: 12,227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.18 : 17,794.91 = 8,168.66 : x
  2. Step 2: Convert to fraction form
    11,888.18/17,794.91 = 8,168.66/x
  3. Step 3: Cross multiply
    11,888.18x = 17,794.91 × 8,168.66
  4. Step 4: Simplify right side
    11,888.18x = 145,360,569.52
  5. Step 5: Solve for x
    x = 145,360,569.52/11,888.18
  6. Step 6: Final answer
    x = 12,227.32

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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.