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Finding the Fourth Proportional to 57,499.25, 86,217.59 and 20,049.31

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Solution

The fourth proportional to 57,499.25, 86,217.59 and 20,049.31 is: 30,063.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,499.25 : 86,217.59 = 20,049.31 : x
  2. Step 2: Convert to fraction form
    57,499.25/86,217.59 = 20,049.31/x
  3. Step 3: Cross multiply
    57,499.25x = 86,217.59 × 20,049.31
  4. Step 4: Simplify right side
    57,499.25x = 1,728,602,749.51
  5. Step 5: Solve for x
    x = 1,728,602,749.51/57,499.25
  6. Step 6: Final answer
    x = 30,063.05

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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.