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Finding the Fourth Proportional to 28,697.56, 43,043.10 and 9,974.44

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Solution

The fourth proportional to 28,697.56, 43,043.10 and 9,974.44 is: 14,960.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,697.56 : 43,043.10 = 9,974.44 : x
  2. Step 2: Convert to fraction form
    28,697.56/43,043.10 = 9,974.44/x
  3. Step 3: Cross multiply
    28,697.56x = 43,043.10 × 9,974.44
  4. Step 4: Simplify right side
    28,697.56x = 429,330,818.36
  5. Step 5: Solve for x
    x = 429,330,818.36/28,697.56
  6. Step 6: Final answer
    x = 14,960.53

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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.