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Finding the Fourth Proportional to 63,502.80, 87,639.60 and 36,649.68

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Solution

The fourth proportional to 63,502.80, 87,639.60 and 36,649.68 is: 50,579.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,502.80 : 87,639.60 = 36,649.68 : x
  2. Step 2: Convert to fraction form
    63,502.80/87,639.60 = 36,649.68/x
  3. Step 3: Cross multiply
    63,502.80x = 87,639.60 × 36,649.68
  4. Step 4: Simplify right side
    63,502.80x = 3,211,963,295.33
  5. Step 5: Solve for x
    x = 3,211,963,295.33/63,502.80
  6. Step 6: Final answer
    x = 50,579.87

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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.