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Finding the Fourth Proportional to 29,034.60, 43,551.90 and 8,255.40

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Solution

The fourth proportional to 29,034.60, 43,551.90 and 8,255.40 is: 12,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,034.60 : 43,551.90 = 8,255.40 : x
  2. Step 2: Convert to fraction form
    29,034.60/43,551.90 = 8,255.40/x
  3. Step 3: Cross multiply
    29,034.60x = 43,551.90 × 8,255.40
  4. Step 4: Simplify right side
    29,034.60x = 359,538,355.26
  5. Step 5: Solve for x
    x = 359,538,355.26/29,034.60
  6. Step 6: Final answer
    x = 12,383.10

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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.