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Finding the Fourth Proportional to 29,112.60, 43,604.10 and 28,464.60

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Solution

The fourth proportional to 29,112.60, 43,604.10 and 28,464.60 is: 42,633.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,112.60 : 43,604.10 = 28,464.60 : x
  2. Step 2: Convert to fraction form
    29,112.60/43,604.10 = 28,464.60/x
  3. Step 3: Cross multiply
    29,112.60x = 43,604.10 × 28,464.60
  4. Step 4: Simplify right side
    29,112.60x = 1,241,173,264.86
  5. Step 5: Solve for x
    x = 1,241,173,264.86/29,112.60
  6. Step 6: Final answer
    x = 42,633.54

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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.