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Finding the Fourth Proportional to 36,851.87, 50,856.94 and 20,939.02

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Solution

The fourth proportional to 36,851.87, 50,856.94 and 20,939.02 is: 28,896.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,851.87 : 50,856.94 = 20,939.02 : x
  2. Step 2: Convert to fraction form
    36,851.87/50,856.94 = 20,939.02/x
  3. Step 3: Cross multiply
    36,851.87x = 50,856.94 × 20,939.02
  4. Step 4: Simplify right side
    36,851.87x = 1,064,894,483.80
  5. Step 5: Solve for x
    x = 1,064,894,483.80/36,851.87
  6. Step 6: Final answer
    x = 28,896.62

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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.