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Finding the Fourth Proportional to 34,479.52, 51,719.52 and 15,755.68

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Solution

The fourth proportional to 34,479.52, 51,719.52 and 15,755.68 is: 23,633.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,479.52 : 51,719.52 = 15,755.68 : x
  2. Step 2: Convert to fraction form
    34,479.52/51,719.52 = 15,755.68/x
  3. Step 3: Cross multiply
    34,479.52x = 51,719.52 × 15,755.68
  4. Step 4: Simplify right side
    34,479.52x = 814,876,206.87
  5. Step 5: Solve for x
    x = 814,876,206.87/34,479.52
  6. Step 6: Final answer
    x = 23,633.63

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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.