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Finding the Fourth Proportional to 36,896.76, 50,917.41 and 20,129.76

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Solution

The fourth proportional to 36,896.76, 50,917.41 and 20,129.76 is: 27,779.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,896.76 : 50,917.41 = 20,129.76 : x
  2. Step 2: Convert to fraction form
    36,896.76/50,917.41 = 20,129.76/x
  3. Step 3: Cross multiply
    36,896.76x = 50,917.41 × 20,129.76
  4. Step 4: Simplify right side
    36,896.76x = 1,024,955,243.12
  5. Step 5: Solve for x
    x = 1,024,955,243.12/36,896.76
  6. Step 6: Final answer
    x = 27,779.00

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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.