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Finding the Fourth Proportional to 57,999.60, 87,028.20 and 33,058.80

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Solution

The fourth proportional to 57,999.60, 87,028.20 and 33,058.80 is: 49,604.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,999.60 : 87,028.20 = 33,058.80 : x
  2. Step 2: Convert to fraction form
    57,999.60/87,028.20 = 33,058.80/x
  3. Step 3: Cross multiply
    57,999.60x = 87,028.20 × 33,058.80
  4. Step 4: Simplify right side
    57,999.60x = 2,877,047,858.16
  5. Step 5: Solve for x
    x = 2,877,047,858.16/57,999.60
  6. Step 6: Final answer
    x = 49,604.62

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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.