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Finding the Fourth Proportional to 12,609.27, 17,400.42 and 7,232.49

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Solution

The fourth proportional to 12,609.27, 17,400.42 and 7,232.49 is: 9,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.27 : 17,400.42 = 7,232.49 : x
  2. Step 2: Convert to fraction form
    12,609.27/17,400.42 = 7,232.49/x
  3. Step 3: Cross multiply
    12,609.27x = 17,400.42 × 7,232.49
  4. Step 4: Simplify right side
    12,609.27x = 125,848,363.65
  5. Step 5: Solve for x
    x = 125,848,363.65/12,609.27
  6. Step 6: Final answer
    x = 9,980.62

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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.