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Finding the Fourth Proportional to 29,194.40, 43,775.40 and 12,551.60

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Solution

The fourth proportional to 29,194.40, 43,775.40 and 12,551.60 is: 18,820.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,194.40 : 43,775.40 = 12,551.60 : x
  2. Step 2: Convert to fraction form
    29,194.40/43,775.40 = 12,551.60/x
  3. Step 3: Cross multiply
    29,194.40x = 43,775.40 × 12,551.60
  4. Step 4: Simplify right side
    29,194.40x = 549,451,310.64
  5. Step 5: Solve for x
    x = 549,451,310.64/29,194.40
  6. Step 6: Final answer
    x = 18,820.44

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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.