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Finding the Fourth Proportional to 63,228.87, 94,858.88 and 21,113.48

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Solution

The fourth proportional to 63,228.87, 94,858.88 and 21,113.48 is: 31,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,228.87 : 94,858.88 = 21,113.48 : x
  2. Step 2: Convert to fraction form
    63,228.87/94,858.88 = 21,113.48/x
  3. Step 3: Cross multiply
    63,228.87x = 94,858.88 × 21,113.48
  4. Step 4: Simplify right side
    63,228.87x = 2,002,801,197.28
  5. Step 5: Solve for x
    x = 2,002,801,197.28/63,228.87
  6. Step 6: Final answer
    x = 31,675.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.