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Finding the Fourth Proportional to 8,696.67, 13,021.82 and 5,928.76

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Solution

The fourth proportional to 8,696.67, 13,021.82 and 5,928.76 is: 8,877.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.67 : 13,021.82 = 5,928.76 : x
  2. Step 2: Convert to fraction form
    8,696.67/13,021.82 = 5,928.76/x
  3. Step 3: Cross multiply
    8,696.67x = 13,021.82 × 5,928.76
  4. Step 4: Simplify right side
    8,696.67x = 77,203,245.54
  5. Step 5: Solve for x
    x = 77,203,245.54/8,696.67
  6. Step 6: Final answer
    x = 8,877.33

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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.