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Finding the Fourth Proportional to 28,891.00, 43,303.08 and 12,226.06

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Solution

The fourth proportional to 28,891.00, 43,303.08 and 12,226.06 is: 18,324.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.00 : 43,303.08 = 12,226.06 : x
  2. Step 2: Convert to fraction form
    28,891.00/43,303.08 = 12,226.06/x
  3. Step 3: Cross multiply
    28,891.00x = 43,303.08 × 12,226.06
  4. Step 4: Simplify right side
    28,891.00x = 529,425,837.75
  5. Step 5: Solve for x
    x = 529,425,837.75/28,891.00
  6. Step 6: Final answer
    x = 18,324.94

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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.