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Finding the Fourth Proportional to 18,559, 25,611.42 and 10,175.50

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Solution

The fourth proportional to 18,559, 25,611.42 and 10,175.50 is: 14,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559 : 25,611.42 = 10,175.50 : x
  2. Step 2: Convert to fraction form
    18,559/25,611.42 = 10,175.50/x
  3. Step 3: Cross multiply
    18,559x = 25,611.42 × 10,175.50
  4. Step 4: Simplify right side
    18,559x = 260,609,004.21
  5. Step 5: Solve for x
    x = 260,609,004.21/18,559
  6. Step 6: Final answer
    x = 14,042.19

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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.