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Finding the Fourth Proportional to 36,896.80, 55,345.20 and 17,213.80

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Solution

The fourth proportional to 36,896.80, 55,345.20 and 17,213.80 is: 25,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,896.80 : 55,345.20 = 17,213.80 : x
  2. Step 2: Convert to fraction form
    36,896.80/55,345.20 = 17,213.80/x
  3. Step 3: Cross multiply
    36,896.80x = 55,345.20 × 17,213.80
  4. Step 4: Simplify right side
    36,896.80x = 952,701,203.76
  5. Step 5: Solve for x
    x = 952,701,203.76/36,896.80
  6. Step 6: Final answer
    x = 25,820.70

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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.