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Finding the Fourth Proportional to 13,901.41, 20,854.17 and 4,039.41

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Solution

The fourth proportional to 13,901.41, 20,854.17 and 4,039.41 is: 6,059.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,901.41 : 20,854.17 = 4,039.41 : x
  2. Step 2: Convert to fraction form
    13,901.41/20,854.17 = 4,039.41/x
  3. Step 3: Cross multiply
    13,901.41x = 20,854.17 × 4,039.41
  4. Step 4: Simplify right side
    13,901.41x = 84,238,542.84
  5. Step 5: Solve for x
    x = 84,238,542.84/13,901.41
  6. Step 6: Final answer
    x = 6,059.71

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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.