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Finding the Fourth Proportional to 17,193.69, 25,674.11 and 13,643.85

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Solution

The fourth proportional to 17,193.69, 25,674.11 and 13,643.85 is: 20,373.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,193.69 : 25,674.11 = 13,643.85 : x
  2. Step 2: Convert to fraction form
    17,193.69/25,674.11 = 13,643.85/x
  3. Step 3: Cross multiply
    17,193.69x = 25,674.11 × 13,643.85
  4. Step 4: Simplify right side
    17,193.69x = 350,293,739.83
  5. Step 5: Solve for x
    x = 350,293,739.83/17,193.69
  6. Step 6: Final answer
    x = 20,373.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.