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Finding the Fourth Proportional to 11,296.54, 16,920.15 and 6,900.67

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Solution

The fourth proportional to 11,296.54, 16,920.15 and 6,900.67 is: 10,335.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,296.54 : 16,920.15 = 6,900.67 : x
  2. Step 2: Convert to fraction form
    11,296.54/16,920.15 = 6,900.67/x
  3. Step 3: Cross multiply
    11,296.54x = 16,920.15 × 6,900.67
  4. Step 4: Simplify right side
    11,296.54x = 116,760,371.50
  5. Step 5: Solve for x
    x = 116,760,371.50/11,296.54
  6. Step 6: Final answer
    x = 10,335.94

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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.