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Finding the Fourth Proportional to 13,062.09, 18,025.68 and 7,093.76

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Solution

The fourth proportional to 13,062.09, 18,025.68 and 7,093.76 is: 9,789.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,062.09 : 18,025.68 = 7,093.76 : x
  2. Step 2: Convert to fraction form
    13,062.09/18,025.68 = 7,093.76/x
  3. Step 3: Cross multiply
    13,062.09x = 18,025.68 × 7,093.76
  4. Step 4: Simplify right side
    13,062.09x = 127,869,892.82
  5. Step 5: Solve for x
    x = 127,869,892.82/13,062.09
  6. Step 6: Final answer
    x = 9,789.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.