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Finding the Fourth Proportional to 63,551.44, 87,664.53 and 39,636.60

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Solution

The fourth proportional to 63,551.44, 87,664.53 and 39,636.60 is: 54,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,551.44 : 87,664.53 = 39,636.60 : x
  2. Step 2: Convert to fraction form
    63,551.44/87,664.53 = 39,636.60/x
  3. Step 3: Cross multiply
    63,551.44x = 87,664.53 × 39,636.60
  4. Step 4: Simplify right side
    63,551.44x = 3,474,723,909.80
  5. Step 5: Solve for x
    x = 3,474,723,909.80/63,551.44
  6. Step 6: Final answer
    x = 54,675.77

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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.