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Finding the Fourth Proportional to 63,189.85, 87,201.87 and 36,337.54

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Solution

The fourth proportional to 63,189.85, 87,201.87 and 36,337.54 is: 50,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,189.85 : 87,201.87 = 36,337.54 : x
  2. Step 2: Convert to fraction form
    63,189.85/87,201.87 = 36,337.54/x
  3. Step 3: Cross multiply
    63,189.85x = 87,201.87 × 36,337.54
  4. Step 4: Simplify right side
    63,189.85x = 3,168,701,003.19
  5. Step 5: Solve for x
    x = 3,168,701,003.19/63,189.85
  6. Step 6: Final answer
    x = 50,145.73

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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.