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Finding the Fourth Proportional to 29,128.80, 43,685.22 and 8,063.80

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Solution

The fourth proportional to 29,128.80, 43,685.22 and 8,063.80 is: 12,093.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.80 : 43,685.22 = 8,063.80 : x
  2. Step 2: Convert to fraction form
    29,128.80/43,685.22 = 8,063.80/x
  3. Step 3: Cross multiply
    29,128.80x = 43,685.22 × 8,063.80
  4. Step 4: Simplify right side
    29,128.80x = 352,268,877.04
  5. Step 5: Solve for x
    x = 352,268,877.04/29,128.80
  6. Step 6: Final answer
    x = 12,093.49

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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.