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Finding the Fourth Proportional to 11,745.71, 16,209.92 and 6,711.46

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Solution

The fourth proportional to 11,745.71, 16,209.92 and 6,711.46 is: 9,262.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.71 : 16,209.92 = 6,711.46 : x
  2. Step 2: Convert to fraction form
    11,745.71/16,209.92 = 6,711.46/x
  3. Step 3: Cross multiply
    11,745.71x = 16,209.92 × 6,711.46
  4. Step 4: Simplify right side
    11,745.71x = 108,792,205.94
  5. Step 5: Solve for x
    x = 108,792,205.94/11,745.71
  6. Step 6: Final answer
    x = 9,262.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.