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Finding the Fourth Proportional to 13,447.88, 20,156.88 and 10,150.28

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Solution

The fourth proportional to 13,447.88, 20,156.88 and 10,150.28 is: 15,214.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.88 : 20,156.88 = 10,150.28 : x
  2. Step 2: Convert to fraction form
    13,447.88/20,156.88 = 10,150.28/x
  3. Step 3: Cross multiply
    13,447.88x = 20,156.88 × 10,150.28
  4. Step 4: Simplify right side
    13,447.88x = 204,597,975.93
  5. Step 5: Solve for x
    x = 204,597,975.93/13,447.88
  6. Step 6: Final answer
    x = 15,214.14

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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.