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Finding the Fourth Proportional to 13,336.80, 20,008.17 and 5,016.88

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Solution

The fourth proportional to 13,336.80, 20,008.17 and 5,016.88 is: 7,526.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.80 : 20,008.17 = 5,016.88 : x
  2. Step 2: Convert to fraction form
    13,336.80/20,008.17 = 5,016.88/x
  3. Step 3: Cross multiply
    13,336.80x = 20,008.17 × 5,016.88
  4. Step 4: Simplify right side
    13,336.80x = 100,378,612.92
  5. Step 5: Solve for x
    x = 100,378,612.92/13,336.80
  6. Step 6: Final answer
    x = 7,526.44

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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.