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Finding the Fourth Proportional to 63,625.87, 87,811.76 and 38,475.31

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Solution

The fourth proportional to 63,625.87, 87,811.76 and 38,475.31 is: 53,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,625.87 : 87,811.76 = 38,475.31 : x
  2. Step 2: Convert to fraction form
    63,625.87/87,811.76 = 38,475.31/x
  3. Step 3: Cross multiply
    63,625.87x = 87,811.76 × 38,475.31
  4. Step 4: Simplify right side
    63,625.87x = 3,378,584,495.27
  5. Step 5: Solve for x
    x = 3,378,584,495.27/63,625.87
  6. Step 6: Final answer
    x = 53,100.80

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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.