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Finding the Fourth Proportional to 36,945.68, 55,418.16 and 9,243.68

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Solution

The fourth proportional to 36,945.68, 55,418.16 and 9,243.68 is: 13,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,945.68 : 55,418.16 = 9,243.68 : x
  2. Step 2: Convert to fraction form
    36,945.68/55,418.16 = 9,243.68/x
  3. Step 3: Cross multiply
    36,945.68x = 55,418.16 × 9,243.68
  4. Step 4: Simplify right side
    36,945.68x = 512,267,737.23
  5. Step 5: Solve for x
    x = 512,267,737.23/36,945.68
  6. Step 6: Final answer
    x = 13,865.43

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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.