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Finding the Fourth Proportional to 34,479.39, 51,723.13 and 12,295.92

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Solution

The fourth proportional to 34,479.39, 51,723.13 and 12,295.92 is: 18,445.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,479.39 : 51,723.13 = 12,295.92 : x
  2. Step 2: Convert to fraction form
    34,479.39/51,723.13 = 12,295.92/x
  3. Step 3: Cross multiply
    34,479.39x = 51,723.13 × 12,295.92
  4. Step 4: Simplify right side
    34,479.39x = 635,983,179.27
  5. Step 5: Solve for x
    x = 635,983,179.27/34,479.39
  6. Step 6: Final answer
    x = 18,445.32

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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.