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Finding the Fourth Proportional to 51,651.94, 77,483.31 and 18,375.07

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Solution

The fourth proportional to 51,651.94, 77,483.31 and 18,375.07 is: 27,564.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,651.94 : 77,483.31 = 18,375.07 : x
  2. Step 2: Convert to fraction form
    51,651.94/77,483.31 = 18,375.07/x
  3. Step 3: Cross multiply
    51,651.94x = 77,483.31 × 18,375.07
  4. Step 4: Simplify right side
    51,651.94x = 1,423,761,245.08
  5. Step 5: Solve for x
    x = 1,423,761,245.08/51,651.94
  6. Step 6: Final answer
    x = 27,564.53

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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.