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Finding the Fourth Proportional to 29,199.68, 43,799.76 and 12,558.56

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Solution

The fourth proportional to 29,199.68, 43,799.76 and 12,558.56 is: 18,837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,199.68 : 43,799.76 = 12,558.56 : x
  2. Step 2: Convert to fraction form
    29,199.68/43,799.76 = 12,558.56/x
  3. Step 3: Cross multiply
    29,199.68x = 43,799.76 × 12,558.56
  4. Step 4: Simplify right side
    29,199.68x = 550,061,913.95
  5. Step 5: Solve for x
    x = 550,061,913.95/29,199.68
  6. Step 6: Final answer
    x = 18,837.94

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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.