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Finding the Fourth Proportional to 57,189.54, 85,788.09 and 19,753.23

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Solution

The fourth proportional to 57,189.54, 85,788.09 and 19,753.23 is: 29,631.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,189.54 : 85,788.09 = 19,753.23 : x
  2. Step 2: Convert to fraction form
    57,189.54/85,788.09 = 19,753.23/x
  3. Step 3: Cross multiply
    57,189.54x = 85,788.09 × 19,753.23
  4. Step 4: Simplify right side
    57,189.54x = 1,694,591,873.03
  5. Step 5: Solve for x
    x = 1,694,591,873.03/57,189.54
  6. Step 6: Final answer
    x = 29,631.15

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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.