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Finding the Fourth Proportional to 29,643.60, 44,449.20 and 12,093.60

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Solution

The fourth proportional to 29,643.60, 44,449.20 and 12,093.60 is: 18,133.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,643.60 : 44,449.20 = 12,093.60 : x
  2. Step 2: Convert to fraction form
    29,643.60/44,449.20 = 12,093.60/x
  3. Step 3: Cross multiply
    29,643.60x = 44,449.20 × 12,093.60
  4. Step 4: Simplify right side
    29,643.60x = 537,550,845.12
  5. Step 5: Solve for x
    x = 537,550,845.12/29,643.60
  6. Step 6: Final answer
    x = 18,133.79

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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.