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Finding the Fourth Proportional to 57,504.38, 86,255.85 and 20,064.38

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Solution

The fourth proportional to 57,504.38, 86,255.85 and 20,064.38 is: 30,096.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,504.38 : 86,255.85 = 20,064.38 : x
  2. Step 2: Convert to fraction form
    57,504.38/86,255.85 = 20,064.38/x
  3. Step 3: Cross multiply
    57,504.38x = 86,255.85 × 20,064.38
  4. Step 4: Simplify right side
    57,504.38x = 1,730,670,151.62
  5. Step 5: Solve for x
    x = 1,730,670,151.62/57,504.38
  6. Step 6: Final answer
    x = 30,096.32

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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.