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Finding the Fourth Proportional to 57,726.72, 86,573.66 and 36,634.95

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Solution

The fourth proportional to 57,726.72, 86,573.66 and 36,634.95 is: 54,942.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,726.72 : 86,573.66 = 36,634.95 : x
  2. Step 2: Convert to fraction form
    57,726.72/86,573.66 = 36,634.95/x
  3. Step 3: Cross multiply
    57,726.72x = 86,573.66 × 36,634.95
  4. Step 4: Simplify right side
    57,726.72x = 3,171,621,522.24
  5. Step 5: Solve for x
    x = 3,171,621,522.24/57,726.72
  6. Step 6: Final answer
    x = 54,942.00

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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.