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Finding the Fourth Proportional to 12,744.57, 17,585.55 and 7,365.97

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Solution

The fourth proportional to 12,744.57, 17,585.55 and 7,365.97 is: 10,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,744.57 : 17,585.55 = 7,365.97 : x
  2. Step 2: Convert to fraction form
    12,744.57/17,585.55 = 7,365.97/x
  3. Step 3: Cross multiply
    12,744.57x = 17,585.55 × 7,365.97
  4. Step 4: Simplify right side
    12,744.57x = 129,534,619.82
  5. Step 5: Solve for x
    x = 129,534,619.82/12,744.57
  6. Step 6: Final answer
    x = 10,163.91

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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.