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Finding the Fourth Proportional to 36,945.99, 55,428.84 and 13,255.92

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Solution

The fourth proportional to 36,945.99, 55,428.84 and 13,255.92 is: 19,887.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,945.99 : 55,428.84 = 13,255.92 : x
  2. Step 2: Convert to fraction form
    36,945.99/55,428.84 = 13,255.92/x
  3. Step 3: Cross multiply
    36,945.99x = 55,428.84 × 13,255.92
  4. Step 4: Simplify right side
    36,945.99x = 734,760,268.73
  5. Step 5: Solve for x
    x = 734,760,268.73/36,945.99
  6. Step 6: Final answer
    x = 19,887.42

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1.5x scale

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.