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Finding the Fourth Proportional to 13,659.10, 18,850.26 and 8,352.25

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Solution

The fourth proportional to 13,659.10, 18,850.26 and 8,352.25 is: 11,526.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.10 : 18,850.26 = 8,352.25 : x
  2. Step 2: Convert to fraction form
    13,659.10/18,850.26 = 8,352.25/x
  3. Step 3: Cross multiply
    13,659.10x = 18,850.26 × 8,352.25
  4. Step 4: Simplify right side
    13,659.10x = 157,442,084.09
  5. Step 5: Solve for x
    x = 157,442,084.09/13,659.10
  6. Step 6: Final answer
    x = 11,526.53

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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.