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Finding the Fourth Proportional to 13,366.08, 20,031.84 and 11,800.08

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Solution

The fourth proportional to 13,366.08, 20,031.84 and 11,800.08 is: 17,684.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.08 : 20,031.84 = 11,800.08 : x
  2. Step 2: Convert to fraction form
    13,366.08/20,031.84 = 11,800.08/x
  3. Step 3: Cross multiply
    13,366.08x = 20,031.84 × 11,800.08
  4. Step 4: Simplify right side
    13,366.08x = 236,377,314.55
  5. Step 5: Solve for x
    x = 236,377,314.55/13,366.08
  6. Step 6: Final answer
    x = 17,684.86

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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.