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Finding the Fourth Proportional to 13,184.52, 18,184.14 and 11,201.64

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Solution

The fourth proportional to 13,184.52, 18,184.14 and 11,201.64 is: 15,449.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.52 : 18,184.14 = 11,201.64 : x
  2. Step 2: Convert to fraction form
    13,184.52/18,184.14 = 11,201.64/x
  3. Step 3: Cross multiply
    13,184.52x = 18,184.14 × 11,201.64
  4. Step 4: Simplify right side
    13,184.52x = 203,692,189.99
  5. Step 5: Solve for x
    x = 203,692,189.99/13,184.52
  6. Step 6: Final answer
    x = 15,449.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.