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Finding the Fourth Proportional to 51,224.94, 70,687.71 and 28,867.50

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Solution

The fourth proportional to 51,224.94, 70,687.71 and 28,867.50 is: 39,835.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,224.94 : 70,687.71 = 28,867.50 : x
  2. Step 2: Convert to fraction form
    51,224.94/70,687.71 = 28,867.50/x
  3. Step 3: Cross multiply
    51,224.94x = 70,687.71 × 28,867.50
  4. Step 4: Simplify right side
    51,224.94x = 2,040,577,468.43
  5. Step 5: Solve for x
    x = 2,040,577,468.43/51,224.94
  6. Step 6: Final answer
    x = 39,835.62

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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.