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Finding the Fourth Proportional to 12,954.24, 17,876.16 and 7,365.12

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Solution

The fourth proportional to 12,954.24, 17,876.16 and 7,365.12 is: 10,163.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.24 : 17,876.16 = 7,365.12 : x
  2. Step 2: Convert to fraction form
    12,954.24/17,876.16 = 7,365.12/x
  3. Step 3: Cross multiply
    12,954.24x = 17,876.16 × 7,365.12
  4. Step 4: Simplify right side
    12,954.24x = 131,660,063.54
  5. Step 5: Solve for x
    x = 131,660,063.54/12,954.24
  6. Step 6: Final answer
    x = 10,163.47

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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.