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Finding the Fourth Proportional to 13,506.08, 20,241.84 and 11,940.08

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Solution

The fourth proportional to 13,506.08, 20,241.84 and 11,940.08 is: 17,894.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.08 : 20,241.84 = 11,940.08 : x
  2. Step 2: Convert to fraction form
    13,506.08/20,241.84 = 11,940.08/x
  3. Step 3: Cross multiply
    13,506.08x = 20,241.84 × 11,940.08
  4. Step 4: Simplify right side
    13,506.08x = 241,689,188.95
  5. Step 5: Solve for x
    x = 241,689,188.95/13,506.08
  6. Step 6: Final answer
    x = 17,894.84

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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.