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Finding the Fourth Proportional to 17,930.76, 26,899.26 and 6,838.44

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Solution

The fourth proportional to 17,930.76, 26,899.26 and 6,838.44 is: 10,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,930.76 : 26,899.26 = 6,838.44 : x
  2. Step 2: Convert to fraction form
    17,930.76/26,899.26 = 6,838.44/x
  3. Step 3: Cross multiply
    17,930.76x = 26,899.26 × 6,838.44
  4. Step 4: Simplify right side
    17,930.76x = 183,948,975.55
  5. Step 5: Solve for x
    x = 183,948,975.55/17,930.76
  6. Step 6: Final answer
    x = 10,258.85

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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.