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Finding the Fourth Proportional to 17,915.13, 26,879.98 and 8,059.05

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Solution

The fourth proportional to 17,915.13, 26,879.98 and 8,059.05 is: 12,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,915.13 : 26,879.98 = 8,059.05 : x
  2. Step 2: Convert to fraction form
    17,915.13/26,879.98 = 8,059.05/x
  3. Step 3: Cross multiply
    17,915.13x = 26,879.98 × 8,059.05
  4. Step 4: Simplify right side
    17,915.13x = 216,627,102.82
  5. Step 5: Solve for x
    x = 216,627,102.82/17,915.13
  6. Step 6: Final answer
    x = 12,091.85

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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.