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Finding the Fourth Proportional to 18,559.08, 25,597.08 and 11,489.40

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Solution

The fourth proportional to 18,559.08, 25,597.08 and 11,489.40 is: 15,846.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.08 : 25,597.08 = 11,489.40 : x
  2. Step 2: Convert to fraction form
    18,559.08/25,597.08 = 11,489.40/x
  3. Step 3: Cross multiply
    18,559.08x = 25,597.08 × 11,489.40
  4. Step 4: Simplify right side
    18,559.08x = 294,095,090.95
  5. Step 5: Solve for x
    x = 294,095,090.95/18,559.08
  6. Step 6: Final answer
    x = 15,846.43

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