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Finding the Fourth Proportional to 13,477.44, 20,194.08 and 12,965.44

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Solution

The fourth proportional to 13,477.44, 20,194.08 and 12,965.44 is: 19,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.44 : 20,194.08 = 12,965.44 : x
  2. Step 2: Convert to fraction form
    13,477.44/20,194.08 = 12,965.44/x
  3. Step 3: Cross multiply
    13,477.44x = 20,194.08 × 12,965.44
  4. Step 4: Simplify right side
    13,477.44x = 261,825,132.60
  5. Step 5: Solve for x
    x = 261,825,132.60/13,477.44
  6. Step 6: Final answer
    x = 19,426.92

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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.