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Finding the Fourth Proportional to 63,421.67, 87,530.47 and 36,563.69

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Solution

The fourth proportional to 63,421.67, 87,530.47 and 36,563.69 is: 50,462.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,421.67 : 87,530.47 = 36,563.69 : x
  2. Step 2: Convert to fraction form
    63,421.67/87,530.47 = 36,563.69/x
  3. Step 3: Cross multiply
    63,421.67x = 87,530.47 × 36,563.69
  4. Step 4: Simplify right side
    63,421.67x = 3,200,436,441.57
  5. Step 5: Solve for x
    x = 3,200,436,441.57/63,421.67
  6. Step 6: Final answer
    x = 50,462.83

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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.