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Finding the Fourth Proportional to 57,998.78, 80,036.98 and 33,798.20

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Solution

The fourth proportional to 57,998.78, 80,036.98 and 33,798.20 is: 46,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,998.78 : 80,036.98 = 33,798.20 : x
  2. Step 2: Convert to fraction form
    57,998.78/80,036.98 = 33,798.20/x
  3. Step 3: Cross multiply
    57,998.78x = 80,036.98 × 33,798.20
  4. Step 4: Simplify right side
    57,998.78x = 2,705,105,857.44
  5. Step 5: Solve for x
    x = 2,705,105,857.44/57,998.78
  6. Step 6: Final answer
    x = 46,640.74

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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.