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Finding the Fourth Proportional to 17,193.80, 25,829.10 and 12,009.80

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Solution

The fourth proportional to 17,193.80, 25,829.10 and 12,009.80 is: 18,041.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,193.80 : 25,829.10 = 12,009.80 : x
  2. Step 2: Convert to fraction form
    17,193.80/25,829.10 = 12,009.80/x
  3. Step 3: Cross multiply
    17,193.80x = 25,829.10 × 12,009.80
  4. Step 4: Simplify right side
    17,193.80x = 310,202,325.18
  5. Step 5: Solve for x
    x = 310,202,325.18/17,193.80
  6. Step 6: Final answer
    x = 18,041.52

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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.