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Finding the Fourth Proportional to 63,330, 87,403.68 and 36,473.64

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Solution

The fourth proportional to 63,330, 87,403.68 and 36,473.64 is: 50,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,330 : 87,403.68 = 36,473.64 : x
  2. Step 2: Convert to fraction form
    63,330/87,403.68 = 36,473.64/x
  3. Step 3: Cross multiply
    63,330x = 87,403.68 × 36,473.64
  4. Step 4: Simplify right side
    63,330x = 3,187,930,359.00
  5. Step 5: Solve for x
    x = 3,187,930,359.00/63,330
  6. Step 6: Final answer
    x = 50,338.39

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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.